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CVE-2013-3436

5.0 · MEDIUM

The default configuration of the Group Encrypted Transport VPN (GET VPN) feature on Cisco IOS uses an improper mechanism for enabling Group Domain of Interpretation (GDOI) traffic flow, which allow…

Published Jul 19, 2013ciscoCWE-264EPSS 1.43%

Overview

CVE-2013-3436 is a medium-severity vulnerability affecting cisco ios. It was published on July 19, 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

The default configuration of the Group Encrypted Transport VPN (GET VPN) feature on Cisco IOS uses an improper mechanism for enabling Group Domain of Interpretation (GDOI) traffic flow, which allows remote attackers to bypass the encryption policy via certain uses of UDP port 848, aka Bug ID CSCui07698.

Remediation

Check the references section for vendor advisories and patches from cisco. Update ios 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

Refosvdb.org/95460Reftools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-3436Reftools.cisco.com/security/center/viewAlert.x?alertId=30140Refwww.securityfocus.com/bid/61362Refwww.securitytracker.com/id/1028810Refexchange.xforce.ibmcloud.com/vulnerabilities/85868Refosvdb.org/95460Reftools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-3436Reftools.cisco.com/security/center/viewAlert.x?alertId=30140Refwww.securityfocus.com/bid/61362

How CyberStrike helps

Frequently asked questions

What is CVE-2013-3436?

CVE-2013-3436 is a medium-severity vulnerability affecting cisco ios. It was published on July 19, 2013 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2013-3436?

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-2013-3436?

Check the references section for vendor advisories and patches from cisco. Update ios 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-2013-3436?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-3436 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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