vulnerability within the Multimedia Viewer feature of Cisco Webex Meetings could allow an authenticated, remote attacker to bypass security protections. The vulnerability is due to missing security warning dialog boxes when a room host views shared multimedia files. An authenticated, remote attacker could exploit this vulnerability by using the host role to share files within the Multimedia sharing feature and convincing a former room host to view that file. A warning dialog normally appears cautioning users before the file is displayed; however, the former host would not see that warning dialog, and any shared multimedia would be rendered within the user's browser. The attacker could leverage this behavior to conduct additional attacks by including malicious files within a targeted room host's browser window.

Cisco WebEx Meeting Center allows remote authenticated users to bypass access control and inject content from a different WebEx site via unspecified vectors, aka Bug ID CSCul36197.

Cross-site scripting (XSS) vulnerability in the edit account page in the Web Server in Cisco Unified MeetingPlace Web Conferencing 6.0 before 6.0(517.0) (aka 6.0 MR4) and 7.0 before 7.0(2) (aka 7.0 MR1) allows remote authenticated users to inject arbitrary web script or HTML via the E-mail Address field.

The on-line help system options in Cisco routers allows non-privileged users without "enabled" access to obtain sensitive information via the show command.

Cisco Resource Manager (CRM) 1.1 and earlier creates certain files with insecure permissions that allow local users to obtain sensitive configuration information including usernames, passwords, and SNMP community strings, from (1) swimswd.log, (2) swimdebug.log, (3) dbidebug.log, and (4) temporary files whose names begin with "DPR".

Cisco Resource Manager (CRM) 1.0 and 1.1 creates world-readable log files and temporary files, which may expose sensitive information, to local users such as user IDs, passwords and SNMP community strings.

Cisco Cache Engine allows a remote attacker to gain access via a null username and password.

Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.

The default configuration of Cisco Secure Desktop (CSD) has an unchecked "Disable printing" box in Secure Desktop Settings, which might allow local users to read data that was sent to a printer during another user's SSL VPN session.

SSL VPN Client in Cisco Secure Desktop before 3.1.1.45, when configured to spawn a web browser after a successful connection, stores sensitive browser session information in a directory outside of the CSD vault and does not restrict the user from saving files outside of the vault, which is not cleared after the VPN connection terminates and allows local users to read unencrypted data.

The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload. An attacker could exploit these vulnerabilities by sending a crafted SNMP packet to an affected system via IPv4 or IPv6. Only traffic directed to an affected system can be used to exploit these vulnerabilities. The vulnerabilities are due to a buffer overflow condition in the SNMP subsystem of the affected software. The vulnerabilities affect all versions of SNMP - Versions 1, 2c, and 3. To exploit these vulnerabilities via SNMP Version 2c or earlier, the attacker must know the SNMP read-only community string for the affected system. To exploit these vulnerabilities via SNMP Version 3, the attacker must have user credentials for the affected system. A successful exploit could allow the attacker to execute arbitrary code and obtain full control of the affected system or cause the affected system to reload. Customers are advised to apply the workaround as contained in the Workarounds section below. Fixed software information is available via the Cisco IOS Software Checker. All devices that have enabled SNMP and have not explicitly excluded the affected MIBs or OIDs should be considered vulnerable. Cisco has released software updates that address these vulnerabilities. There are workarounds that address these vulnerabilities. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170629-snmp

A vulnerability in the ConfD server of the Cisco Elastic Services Controller (ESC) could allow an unauthenticated, local attacker to access sensitive information on a targeted system. The vulnerability is due to insufficient security restrictions. An attacker could exploit this vulnerability by accessing unauthorized information within the ConfD directory and file structure. Successful exploitation could allow the attacker to view sensitive information. Cisco Bug IDs: CSCvg00221.

A flaw was found in the Linux kernel's wifi implementation wherein an attacker within wireless range is able to abuse a logic flaw in the wifi implementation by reassembling packets from multiple fragments under different keys and they would be treated as valid. This allows an attacker to send a fragment under an incorrect key and be treated as a valid fragment under the new key.

Upstream patch: https://lore.kernel.org/linux-wireless/20210511200110.3f8290e59823.I622a67769ed39257327a362cfc09c812320eb979@changeid/

A vulnerability in the local management (local-mgmt) CLI of Cisco UCS Manager Software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of CLI command parameters. An attacker could exploit this vulnerability by executing specific commands on the local-mgmt CLI on an affected device. A successful exploit could allow the attacker to cause internal system processes to fail to terminate properly, which could result in a buildup of stuck processes and lead to slowness in accessing the UCS Manager CLI and web UI. A sustained attack may result in a restart of internal UCS Manager processes and a temporary loss of access to the UCS Manager CLI and web UI.

Cisco IOS XR 3.8.1 and earlier allows remote authenticated users to cause a denial of service (process crash) via vectors involving a BGP UPDATE message with many AS numbers prepended to the AS path.

Cisco Secure Desktop (CSD), when used in conjunction with an AnyConnect SSL VPN server, does not properly perform verification, which allows local users to bypass intended policy restrictions via a modified executable file.

Cisco AnyConnect Secure Mobility Client 3.0 before 3.0.08057 allows remote authenticated users to cause a denial of service (vpnagentd process crash) via a crafted packet, aka Bug ID CSCty01670.

Cisco IOS XR 3.8.1 and earlier allows remote attackers to cause a denial of service (process crash) via a long BGP UPDATE message, as demonstrated by a message with many AS numbers in the AS Path Attribute.

Cisco Unified Wireless Network (UWN) Solution 7.x through 7.0.98.0 does not properly handle multiple SSH sessions, which allows physically proximate attackers to read a password, related to an "arrow key failure," aka Bug ID CSCtg51544.

Cross-site scripting (XSS) vulnerability in the file-upload interface in Cisco Identity Services Engine (ISE) allows remote authenticated users to inject arbitrary web script or HTML via a crafted filename, aka Bug ID CSCui67495.

Cross-site scripting (XSS) vulnerability in the portal module in Cisco WebEx Social allows remote authenticated users to inject arbitrary web script or HTML via a javascript: URL in the link field in a post, aka Bug ID CSCue67199.

The StartServiceCtrlDispatcher function in the cvpnd service (cvpnd.exe) in Cisco VPN client for Windows before 5.0.06.0100 does not properly handle an ERRORFAILEDSERVICECONTROLLERCONNECT error, which allows local users to cause a denial of service (service crash and VPN connection loss) via a manual start of cvpnd.exe while the cvpnd service is running.

Classic Cisco IOS 9.1 and later allows attackers with access to the login prompt to obtain portions of the command history of previous users, which may allow the attacker to access sensitive data.

Cisco PIX firewall manager (PFM) 4.3(2)g logs the enable password in plaintext in the pfm.log file, which could allow local users to obtain the password by reading the file.

Cisco Hot Standby Routing Protocol (HSRP) allows local attackers to cause a denial of service by spoofing HSRP packets.

Cisco CBOS 2.3.0.053 sends output of the "sh nat" (aka "show nat") command to the terminal of the next user who attempts to connect to the router via telnet, which could allow that user to obtain sensitive information.

Arrowpoint (aka Cisco Content Services, or CSS) allows local users to cause a denial of service via a long argument to the "show script," "clear script," "show archive," "clear archive," "show log," or "clear log" commands.

Directory traversal vulnerability in Arrowpoint (aka Cisco Content Services, or CSS) allows local unprivileged users to read arbitrary files via a .. (dot dot) attack.

Cisco IP Phone (VoIP) models 7910, 7940, and 7960 use a default administrative password, which allows attackers with physical access to the phone to modify the configuration settings.

Cross-site scripting (XSS) vulnerability in Cisco IOS Web Server for IOS 12.0(2a) allows remote attackers to inject arbitrary web script or HTML by (1) packets containing HTML that an administrator views via an HTTP interface to the contents of memory buffers, as demonstrated by the URI /level/15/exec/-/buffers/assigned/dump; or (2) sending the router Cisco Discovery Protocol (CDP) packets with HTML payload that an administrator views via the CDP status pages. NOTE: these vectors were originally reported as being associated with the dump and packet options in /level/15/exec/-/show/buffers.