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CVE-2013-2686

5.0 · MEDIUM

main/http.c in the HTTP server in Asterisk Open Source 1.8.x before 1.8.20.2, 10.x before 10.12.2, and 11.x before 11.2.2; Certified Asterisk 1.8.15 before 1.8.15-cert2; and Asterisk Digiumphones 1…

Published Apr 1, 2013asteriskCWE-119EPSS 2.13%

Overview

CVE-2013-2686 is a medium-severity vulnerability affecting asterisk open_source. It was published on April 1, 2013 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

main/http.c in the HTTP server in Asterisk Open Source 1.8.x before 1.8.20.2, 10.x before 10.12.2, and 11.x before 11.2.2; Certified Asterisk 1.8.15 before 1.8.15-cert2; and Asterisk Digiumphones 10.x-digiumphones before 10.12.2-digiumphones does not properly restrict Content-Length values, which allows remote attackers to conduct stack-consumption attacks and cause a denial of service (daemon crash) via a crafted HTTP POST request. NOTE: this vulnerability exists because of an incorrect fix for CVE-2012-5976.

Remediation

Check the references section for vendor advisories and patches from asterisk. Update open_source 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

References

Refdownloads.asterisk.org/pub/security/AST-2013-002.htmlReftelussecuritylabs.com/threats/show/TSL20130327-01Refissues.asterisk.org/jira/browse/ASTERISK-20967Refdownloads.asterisk.org/pub/security/AST-2013-002.htmlReftelussecuritylabs.com/threats/show/TSL20130327-01Refissues.asterisk.org/jira/browse/ASTERISK-20967

How CyberStrike helps

Frequently asked questions

What is CVE-2013-2686?

CVE-2013-2686 is a medium-severity vulnerability affecting asterisk open_source. It was published on April 1, 2013 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2013-2686?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2013-2686?

Check the references section for vendor advisories and patches from asterisk. Update open_source 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-2013-2686?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-2686 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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