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CVE-2013-5557

6.3 · MEDIUM

The Proxy Bypass Content Rewriter feature in the WebVPN subsystem in Cisco Adaptive Security Appliance (ASA) Software 9.1(.2) and earlier allows remote authenticated users to cause a denial of serv…

Published Feb 7, 2015ciscoEPSS 2.01%

Overview

CVE-2013-5557 is a medium-severity vulnerability affecting cisco adaptive_security_appliance_software. It was published on February 7, 2015 and has a CVSS 2.0 base score of 6.3 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

The Proxy Bypass Content Rewriter feature in the WebVPN subsystem in Cisco Adaptive Security Appliance (ASA) Software 9.1(.2) and earlier allows remote authenticated users to cause a denial of service (device crash or error-recovery event) via an HTTP request that triggers a rewrite, aka Bug ID CSCug91577.

Remediation

Check the references section for vendor advisories and patches from cisco. Update adaptive_security_appliance_software to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
ciscoadaptive_security_appliance_software0Affected

References

Reftools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5557Reftools.cisco.com/security/center/viewAlert.x?alertId=37383Refwww.securityfocus.com/bid/72529Refexchange.xforce.ibmcloud.com/vulnerabilities/100694Reftools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5557Reftools.cisco.com/security/center/viewAlert.x?alertId=37383Refwww.securityfocus.com/bid/72529Refexchange.xforce.ibmcloud.com/vulnerabilities/100694

How CyberStrike helps

Frequently asked questions

What is CVE-2013-5557?

CVE-2013-5557 is a medium-severity vulnerability affecting cisco adaptive_security_appliance_software. It was published on February 7, 2015 and has a CVSS 2.0 base score of 6.3 (MEDIUM).

How severe is CVE-2013-5557?

This vulnerability has a CVSS 2.0 base score of 6.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2013-5557?

Check the references section for vendor advisories and patches from cisco. Update adaptive_security_appliance_software to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2013-5557?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-5557 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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