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Network Access
The following list contains some of the applications within the Cisco
ASA and Cisco PIX devices that use TLS:
* Clientless WebVPN, SSL VPN Client, and AnyConnect Connections
* ASDM (HTTPS) Management Sessions
* Cut-Through Proxy for Network Access
* TLS Proxy for Encrypted Voice Inspection
Clientless WebVPN, SSL VPN Client, and AnyConnect Connections
+------------------------------------------------------------
* Cisco Tunneling Control Protocol (cTCP) for Remote Access VPNs
* Virtual Telnet
* Virtual HTTP
* Transport Layer Security (TLS) Proxy for Encrypted Voice
Inspection
* Cut-Through Proxy for Network Access
* TCP Intercept
Crafted H.323 Packet DoS Vulnerability
+-------------------------------------
* Secure Socket Layer Virtual Private Network (SSL VPN)
* When the affected device is configured to accept Cisco Adaptive
Security Device Manager (ASDM) connections
* TLS Proxy for Encrypted Voice Inspection
* Cut-Through Proxy for Network Access when using HTTPS
SSL VPN (or WebVPN) is enabled with the "enable <interface name>"
command in "webvpn" configuration mode. SSL VPN is disabled by default.
The following configuration snippet provides an example of a SSL VPN
configuration.
* SSH access to the security appliance
* HTTPS access to the security appliance (including Cisco ASDM
access)
* Serial console access
* Privileged (enable) mode access
* Cut-through proxy for network access
* VPN access
This vulnerability is documented in Cisco bug ID CSCte21953 and has been
assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2010-0568.
* CSCtf42008 - Unauthenticated Java Servlet Access
CVSS Base Score - 10
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - Complete
Integrity Impact - Complete
Availability Impact - Complete
* CSCtb31640 - Unauthenticated CGI Access
CVSS Base Score - 10
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - Complete
Integrity Impact - Complete
Availability Impact - Complete
CSCsq07867 - Memory corruption with traceback in SIP inspection code
CVSS Base Score - 7.8
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
* CSCtf42005 - Unauthenticated Java Servlet Access
CVSS Base Score - 10
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - Complete
Integrity Impact - Complete
Availability Impact - Complete
CSCsj74818 - DNS Response Parsing Stack Overflow
CVSS Base Score - 10.0
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - Complete
Integrity Impact - Complete
Availability Impact - Complete
The PIX and ASA security appliances are also affected by a crafted TLS
packet vulnerability that affects devices running certain 7.x software
versions if the software has one or more features configured that cause
TLS sessions to terminate on the PIX or ASA security appliance. These
functions include, but are not limited to, clientless WebVPN, HTTPS
management, cut-through proxy for network access, and TLS proxy for
encrypted voice inspection. Version 6.3.x is not affected. Features that
cause TLS sessions to terminate on the PIX and ASA security appliances
are not enabled by default. For specific affected versions, please refer
to the "Software Versions and Fixes" section.
* CSCsj80609 - Memory Leak Due to TCPFUZZ on Port 2444 (CTLProvider)
CVSS Base Score - 7.8
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
- -----------------------------------------------------
CVSS Base Score - 10
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - Complete
Integrity Impact - Complete
Availability Impact - Complete
* CSCsj80609 - Memory Leak Due to TCPFUZZ on Port 2444 (CTLProvider)
CVSS Base Score - 7.8
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
and appliance
CVSS Base Score - 10
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - Complete
Integrity Impact - Complete
Availability Impact - Complete
* CSCth39586 ("Core dump when processing certain SIP packets")
CVSS Base Score - 7.8
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
* CSCtq48990 - CiscoWorks Arbitrary Command Execution Vulnerability
CVSS Base Score - 9.0
Access Vector - Network
Access Complexity - Low
Authentication - Single
Confidentiality Impact - Complete
Integrity Impact - Complete
Availability Impact - Complete
Default credentials
+------------------
Default credentials are assigned for several predefined user accounts
on the device including the administrative user account. Any user
with network access to the device can log in as an administrator and
take complete control over the vulnerable device.
* CSCtb83495 ( registered customers only) has been assigned the CVE
identifier CVE-2010-0595.
+---------------------------------------------------
Devices running vulnerable versions of Cisco FWSM Software are
affected by this vulnerability if they are configured to use
Authentication, Authorization, and Accounting (AAA) for network
access, also known as cut-through or authentication proxy. The
network access authentication feature is enabled if the aaa
authentication match or aaa authentication include commands are
present in the configuration of an affected device.
TACACS+ Authentication Bypass Vulnerability
The following Cisco ASA features use the services the crypto accelerator
provides, and therefore may be affected by this vulnerability:
* Clientless WebVPN, SSL VPN Client, and AnyConnect Connections
* ASDM (HTTPS) Management Sessions
* Cut-Through Proxy for Network Access
* TLS Proxy for Encrypted Voice Inspection
* IP Security (IPsec) Remote Access and Site-to-site VPNs
* Secure Shell (SSH) Access
This vulnerability is documented in Cisco Bug ID CSCsj25896 and has
* CSCtd10712 ("NAT LDAP Vulnerability")
CVSS Base Score - 7.8
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
CSCtc38985 - CCM Coredump on SCCP StationCapabilitiesRes Message with MaxCap Exceeded
CVSS Base Score - 7.8
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
* CSCtf97162 - CCM Application Restarts During TCP Flood
CVSS Base Score - 7.8
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
CSCsi46466 - CM 6.1 SDL router services dead when receiving abnormal
CVSS Base Score - 7.8
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
* ACE Device Manager invalid directory permissions (CSCsv66063)
CVSS Base Score - 9.0
Access Vector - Network
Access Complexity - Low
Authentication - Single
Confidentiality Impact - Complete
Integrity Impact - Complete
Availability Impact - Complete
* CSCti81574 - Open Query Interface
CVSS Base Score - 10.0
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - Complete
Integrity Impact - Complete
Availability Impact - Complete
+-----------------------------------------------------
CVSS Base Score - 7.8
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
CSCta85227, CSCtg14858 - RTSP Inspection DoS Vulnerability
CVSS Base Score - 7.8
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
Details
=======
The Cisco RVS4000 and WRVS4400N Gigabit Security Routers deliver
high-speed network access and IPsec VPN capabilities for small
businesses. They also provides firewall and intrusion prevention
capabilities.
The Cisco RVS4000 and WRVS4400N Gigabit Security Routers contain
three web management interface vulnerabilities:
CSCtc39691 - Insufficient validation of SQL commands
CVSS Base Score - 9
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - Partial
Integrity Impact - Partial
Availability Impact - Complete
CSCta56653 - WLC may reload when receiving crafted IKE packets
CVSS Base Score - 7.8
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
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