What’s Vulnerable › Vulnerabilities

CVE-2009-4455

• Severity: medium (CVSS 6.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2009-12-29 · updated 2026-06-16
• Weakness: CWE-264

Description

The default configuration of Cisco ASA 5500 Series Adaptive Security Appliance (Cisco ASA) 7.0, 7.1, 7.2, 8.0, 8.1, and 8.2 allows portal traffic to access arbitrary backend servers, which might allow remote authenticated users to bypass intended access restrictions and access unauthorized web sites via a crafted URL obfuscated with ROT13 and a certain encoding. NOTE: this issue was originally reported as a vulnerability related to lack of restrictions to URLs listed in the Cisco WebVPN bookmark component, but the vendor states that "The bookmark feature is not a security feature."

Affected products

• Cisco Adaptive Security Appliance 5500: 7.0, 7.1, 7.2, 8.0, 8.1, 8.2

References

• http://osvdb.org/61132
• http://secunia.com/advisories/37710
• http://tools.cisco.com/security/center/viewAlert.x?alertId=19609
• http://www.securityfocus.com/archive/1/508530/100/0/threaded
• http://www.securitytracker.com/id?1023368
• http://www.vupen.com/english/advisories/2009/3577
• http://osvdb.org/61132
• http://secunia.com/advisories/37710
• http://tools.cisco.com/security/center/viewAlert.x?alertId=19609
• http://www.securityfocus.com/archive/1/508530/100/0/threaded
• http://www.securitytracker.com/id?1023368
• http://www.vupen.com/english/advisories/2009/3577

Get alerted when CVE-2009-4455 or the next vulnerability affects your stack