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CVE-2018-0256

5.8 · MEDIUM

A vulnerability in the peer-to-peer message processing functionality of Cisco Packet Data Network Gateway could allow an unauthenticated, remote attacker to cause the Session Manager (SESSMGR) proc…

Published Apr 19, 2018CWE-20EPSS 1.52%

Overview

CVE-2018-0256 is a medium-severity vulnerability. It was published on April 19, 2018 and has a CVSS 3.0 base score of 5.8 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A vulnerability in the peer-to-peer message processing functionality of Cisco Packet Data Network Gateway could allow an unauthenticated, remote attacker to cause the Session Manager (SESSMGR) process on an affected device to restart, resulting in a denial of service (DoS) condition. The vulnerability is due to incorrect validation of peer-to-peer packet headers. An attacker could exploit this vulnerability by sending a crafted peer-to-peer packet through an affected device. A successful exploit could allow the attacker to cause the SESSMGR process on the affected device to restart unexpectedly, which could briefly impact traffic while the SESSMGR process restarts and result in a DoS condition. Cisco Bug IDs: CSCvg88786.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refwww.securityfocus.com/bid/103951Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-pdngRefwww.securityfocus.com/bid/103951Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-pdng

How CyberStrike helps

Frequently asked questions

What is CVE-2018-0256?

CVE-2018-0256 is a medium-severity vulnerability. It was published on April 19, 2018 and has a CVSS 3.0 base score of 5.8 (MEDIUM).

How severe is CVE-2018-0256?

This vulnerability has a CVSS 3.0 base score of 5.8, 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-2018-0256?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2018-0256?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-0256 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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