Cisco has released an advisory detailing code execution, out of bounds, and denial of service vulnerabilities in the WebEx Network Recording Player.
933e82144bff1553d310fc0e1a83961cada366eaac209dc3750e70b91843bdd0Cisco Security Advisory - A vulnerability in the Data-in-Motion (DMo) process installed with the Cisco IOx application environment could allow an unauthenticated, remote attacker to cause a stack overflow that could allow remote code execution with root privileges in the virtual instance running on an affected device. The vulnerability is due to insufficient bounds checking in the DMo process. An attacker could exploit this vulnerability by sending crafted packets that are forwarded to the DMo process for evaluation. The impacts of a successful exploit are limited to the scope of the virtual instance and do not impact the router that is hosting Cisco IOx. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
5690117646d6b3517de249b639b84ad6009dd63bbb933633ae322ba51a01b44eCisco Security Advisory - A vulnerability in the DHCP code for the Zero Touch Provisioning feature of Cisco ASR 920 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to a format string vulnerability when processing a crafted DHCP packet for Zero Touch Provisioning. An attacker could exploit this vulnerability by sending a specially crafted DHCP packet to an affected device. An exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
2758392fd2285e59de5765f4ed70e192889eb0b4cc11290f2945bbbaffd07401Cisco Security Advisory - A vulnerability in the Layer 2 Tunneling Protocol (L2TP) parsing function of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to insufficient validation of L2TP packets. An attacker could exploit this vulnerability by sending a crafted L2TP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
8bea2ddcb93ad10635670df2af50464d0f21871575a44f527c5534396ab6f63dCisco Security Advisory - A vulnerability in the DHCP client implementation of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability occurs during the parsing of a crafted DHCP packet. An attacker could exploit this vulnerability by sending crafted DHCP packets to an affected device that is configured as a DHCP client. A successful exploit could allow the attacker to cause a reload of an affected device, resulting in a DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
9128134a4778e4b6128fd57912ce670d99b70dd87d2acfe189b66ebf145284ceCisco Security Advisory - A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of an affected device or remotely execute code with elevated privileges. The Cluster Management Protocol utilizes Telnet internally as a signaling and command protocol between cluster members. The vulnerability is due to the combination of two factors: The failure to restrict the use of CMP-specific Telnet options only to internal, local communications between cluster members and instead accept and process such options over any Telnet connection to an affected device, and The incorrect processing of malformed CMP-specific Telnet options. An attacker could exploit this vulnerability by sending malformed CMP-specific Telnet options while establishing a Telnet session with an affected Cisco device configured to accept Telnet connections. An exploit could allow an attacker to execute arbitrary code and obtain full control of the device or cause a reload of the affected device. Cisco will release software updates that address this vulnerability. There are no workarounds that address this vulnerability.
209636ac80e070405b945bd39606a236c49f1da456a8faee8149160ebe8d92bdCisco Security Advisory - A vulnerability in the Client Manager Server of Cisco Workload Automation and Cisco Tidal Enterprise Scheduler could allow an unauthenticated, remote attacker to retrieve any file from the Client Manager Server. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted URL to the Client Manager Server. An exploit could allow the attacker to retrieve any file from the Cisco Workload Automation or Cisco Tidal Enterprise Scheduler Client Manager Server. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
0742ceb22f1861972c1748f3c5cd467a250c277f3d7a11eebfc96fd3898a494dCisco Security Advisory - A vulnerability in the web-based GUI of Cisco Mobility Express 1800 Series Access Points could allow an unauthenticated, remote attacker to bypass authentication. The attacker could be granted full administrator privileges. The vulnerability is due to improper implementation of authentication for accessing certain web pages using the GUI interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web interface of the affected system. A successful exploit could allow the attacker to bypass authentication and perform unauthorized configuration changes or issue control commands to the affected device. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
bd92cac44b2f149009706c1808ced146e1c0f4fc15a1754d8a0e09ca477ef530Cisco Security Advisory - A privilege escalation vulnerability in the Secure Shell (SSH) subsystem in the StarOS operating system for Cisco ASR 5000 Series, ASR 5500 Series, ASR 5700 Series devices, and Cisco Virtualized Packet Core could allow an authenticated, remote attacker to gain unrestricted, root shell access. The vulnerability is due to missing input validation of parameters passed during SSH or SFTP login. An attacker could exploit this vulnerability by providing crafted user input to the SSH or SFTP command-line interface (CLI) during SSH or SFTP login. An exploit could allow an authenticated attacker to gain root privileges access on the router. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability can be triggered via both IPv4 and IPv6 traffic. An established TCP connection toward port 22, the SSH default port, is needed to perform the attack. The attacker must have valid credentials to login to the system via SSH or SFTP. Cisco has released software updates that address this vulnerability. Workarounds that mitigate this vulnerability are not available.
3af41f251d2f51e2bc77992540bef519775244270fbe2db95d0952bb965612f6Cisco Security Advisory - A vulnerability in the web-based GUI of Cisco UCS Director could allow an authenticated, local attacker to execute arbitrary workflow items with just an end-user profile. The vulnerability is due to improper role-based access control (RBAC) after the Developer Menu is enabled in Cisco UCS Director. Attackers could exploit this vulnerability by enabling Developer Mode for their user profile with an end-user profile and then adding new catalogs with arbitrary workflow items to the profile. An exploit could allow attackers to perform any actions defined by these workflow items, including actions affecting other tenants. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
af8ddd4b376f7c30e09926c47b62cf5a42d2a31626a7239edac7bdaa02886344Cisco Security Response - Several researchers have reported on the use of Smart Install (SMI) protocol messages toward Smart Install clients, also known as integrated branch clients (IBC), allowing an unauthenticated, remote attacker to change the startup-config file and force a reload of the device, upgrade the IOS image on the device, and execute high-privilege CLI commands on switches running Cisco IOS and IOS XE Software. Cisco does not consider this a vulnerability in Cisco IOS, IOS XE, or the Smart Install feature itself but a misuse of the Smart Install protocol that by design does not require authentication.
710f50b6b06fe5e115b57cbe592f3bcdf8a41ddd4acd0ce1cfa610c91c585c24Cisco Security Advisory - A vulnerability in Common Internet Filesystem (CIFS) code in the Clientless SSL VPN functionality of Cisco ASA Software could allow an authenticated, remote attacker to cause a heap overflow. The vulnerability is due to insufficient validation of user supplied input. An attacker could exploit this vulnerability by sending a crafted URL to the affected system. An exploit could allow the remote attacker to cause a reload of the affected system or potentially execute code. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed firewall mode only and in single or multiple context mode. This vulnerability can be triggered by IPv4 or IPv6 traffic. A valid TCP connection is needed to perform the attack. The attacker needs to have valid credentials to log in to the Clientless SSL VPN portal.
3c44810c1c923ca647c9e492ddffeb0477b936dcb0db527d5f8386e86bb91e2aCisco Security Advisory - A vulnerability in the Start Before Logon (SBL) module of Cisco AnyConnect Secure Mobility Client Software for Windows could allow an unauthenticated, local attacker to open Internet Explorer with the privileges of the SYSTEM user. The vulnerability is due to insufficient implementation of the access controls. An attacker could exploit this vulnerability by opening the Internet Explorer browser. An exploit could allow the attacker to use Internet Explorer with the privileges of the SYSTEM user. This may allow the attacker to execute privileged commands on the targeted system.
02b9c6f4f6e737456c42c90aad2a3b6e1af83ca3854fb613d016ca479d142536Cisco Security Advisory - A vulnerability in the web-based GUI of Cisco Prime Home could allow an unauthenticated, remote attacker to bypass authentication and execute actions with administrator privileges. The vulnerability is due to a processing error in the role-based access control (RBAC) of URLs. An attacker could exploit this vulnerability by sending API commands via HTTP to a particular URL without prior authentication. An exploit could allow the attacker to perform any actions in Cisco Prime Home with administrator privileges. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
2b2b37f518d4ccc6b7169be17a2c17c139547bd38148a33f01b2283bdda1b7b5Cisco Security Advisory - A vulnerability in a proprietary device driver in the kernel of Cisco TelePresence Multipoint Control Unit (MCU) Software could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. The vulnerability is due to improper size validation when reassembling fragmented IPv4 or IPv6 packets. An attacker could exploit this vulnerability by sending crafted IPv4 or IPv6 fragments to a port receiving content in Passthrough content mode. An exploit could allow the attacker to overflow a buffer. If successful, the attacker could execute arbitrary code or cause a DoS condition on the affected system. Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available.
b25ac4e0a30adf1e190b4cdde7f8af8749cd2dec6e09663e29c25b6921ea28a5Cisco Security Advisory - A vulnerability in the received packet parser of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) software could allow an unauthenticated, remote attacker to cause a reload of the affected system, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient size validation of user-supplied data. An attacker could exploit this vulnerability by sending crafted H.224 data in Real-Time Transport Protocol (RTP) packets in an H.323 call. An exploit could allow the attacker to overflow a buffer in a cache that belongs to the received packet parser, which will result in a crash of the application, resulting in a DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
e38280c54046f87c9130ec4824a4152f839104804c03a19b62b8d53b7ab0c984Cisco Security Advisory - A vulnerability in the data plane IP fragment handler of the Adaptive Security Appliance (ASA) CX Context-Aware Security module could allow an unauthenticated, remote attacker to cause the CX module to be unable to process further traffic, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of IP fragments. An attacker could exploit this vulnerability by sending fragmented IP traffic across the CX module. An exploit could allow the attacker to exhaust free packet buffers in shared memory (SHM), causing the CX module to be unable to process further traffic, resulting in a DoS condition. Cisco has not released and will not release software updates that address this vulnerability. There are no workarounds that address this vulnerability.
360234b583a96365ec769e58bf559cda974f2537dd62ac3a8ca202d463fbc744Cisco Security Advisory - A vulnerability in the Cisco WebEx browser extensions provided by Cisco WebEx Meetings Server and Cisco WebEx Meetings Center could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system. The vulnerability is due to the use of a crafted pattern by the affected software. An attacker could exploit this vulnerability by directing a user to a web page that contains the crafted pattern and starting a WebEx session. The WebEx session could allow the attacker to execute arbitrary code on the affected system, which could be used to conduct further attacks. Cisco has begun to release software updates that address this vulnerability. There are no workarounds that address this vulnerability.
b4dd5a562bd71f25e3fbb03491264124af0983e2e1def39c2ed41c5de59b19b2Cisco Security Advisory - A vulnerability in Cisco Meeting Server and Meeting App could allow an unauthenticated, remote attacker to execute arbitrary code on an affected system. The vulnerability exists because the software does not perform sufficient boundary checks on user-supplied data. An unauthenticated, remote attacker could exploit this vulnerability by sending crafted IPv6 input to the vulnerable function. A successful exploit could result in an exploitable buffer underflow condition. An attacker could leverage this buffer underflow condition to incorrectly allocate memory and cause a reload of the device or execute arbitrary code with the privileges of the affected application. Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available.
0dc16e3997cc5709f18ca8b554b69f0dc218df3ac3988b7a807e4c7d79edf309Cisco Security Advisory - A vulnerability in the Transaction Language 1 (TL1) code of Cisco ASR 900 Series routers could allow an unauthenticated, remote attacker to cause a reload of, or remotely execute code on, the affected system. The vulnerability exists because the affected software performs incomplete bounds checks on input data. An attacker could exploit this vulnerability by sending a malicious request to the TL1 port, which could cause the device to reload. An exploit could allow the attacker to execute arbitrary code and obtain full control of the system or cause a reload of the affected system. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.
ced8dc5d0190e0c2046e7b4711ec7054742dc439b5bb859ea3d02f3ba9a9a804Cisco Security Advisory - A vulnerability in the Identity Firewall feature of Cisco ASA Software could allow an unauthenticated, remote attacker to cause a reload of the affected system or to remotely execute code. The vulnerability is due to a buffer overflow in the affected code area. An attacker could exploit this vulnerability by sending a crafted NetBIOS packet in response to a NetBIOS probe sent by the ASA software. An exploit could allow the attacker to execute arbitrary code and obtain full control of the system or cause a reload of the affected system. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed and transparent firewall mode and in single or multiple context mode. This vulnerability can be triggered by IPv4 traffic. Cisco has released software updates that address this vulnerability. Workarounds that mitigate this vulnerability are not available.
ec71423c8a13380eb28398b2ca96acf7cd796aa893ce8fd1eda95fa5b8b341eaCisco Security Advisory - A vulnerability in the Extensible Messaging and Presence Protocol (XMPP) service of the Cisco Meeting Server (CMS) could allow an unauthenticated, remote attacker to masquerade as a legitimate user. This vulnerability is due to the XMPP service incorrectly processing a deprecated authentication scheme. A successful exploit could allow an attacker to access the system as another user. Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability in some environments are available.
94d4d98592bf68b04c291f2f419a084d227bb9e58eb9e47958f9e47f8ba0436bCisco Security Advisory - A vulnerability in the Border Gateway Protocol (BGP) implementation of Cisco NX-OS System Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition due to the device unexpectedly reloading. The vulnerability is due to incomplete input validation of the BGP update messages. An attacker could exploit this vulnerability by sending a crafted BGP update message to the targeted device. An exploit could allow the attacker to cause the switch to reload unexpectedly.
8ce0b4e2cd44fc5124a463c2336491a1f1c4130af4c7ad089c31218a45daeb59Cisco Security Advisory - A vulnerability in the implementation of the DHCPv4 relay agent in Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of malformed DHCPv4 packets. An attacker could exploit this vulnerability by sending malformed DHCPv4 packets to an affected device. An exploit could allow the attacker to cause the DHCP process or device to crash. This vulnerability can be exploited using IPv4 packets only. The vulnerability can be triggered by malformed DHCP packets processed by a DHCP relay agent listening on the device, using the IPv4 broadcast address or IPv4 unicast address of any interface configured on a device. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
00ef1585c4be6ec24217654758520b7d73508afb58cff86f584eb0bf75779bdaCisco Security Advisory - A vulnerability in the implementation of the DHCPv4 relay agent and smart relay agent in Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of crafted DHCPv4 offer packets. An attacker could exploit this vulnerability by sending crafted DHCPv4 offer packets to an affected device. An exploit could allow the attacker to cause the DHCP process or device to crash. This vulnerability can be exploited using IPv4 packets only. The vulnerability can be triggered by crafted DHCP packets processed by a DHCP relay agent or smart relay agent listening on the device using the IPv4 broadcast address or the IPv4 unicast address of any interface configured on a device. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
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