Cisco Evolved Programmable Network Manager up to 5.1.2 Request path traversal

Summaryinfo

A vulnerability has been found in Cisco Evolved Programmable Network Manager and Prime Infrastructure and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Request Handler. The manipulation leads to path traversal. This vulnerability is referenced as CVE-2022-20656. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cisco Evolved Programmable Network Manager and Prime Infrastructure. This issue affects an unknown part of the component Request Handler. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-24. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize "../" sequences that can resolve to a location that is outside of that directory. Impacted is integrity, and availability. The summary by CVE is:

A vulnerability in the web-based management interface of Cisco PI and Cisco EPNM could allow an authenticated, remote attacker to conduct a path traversal attack on an affected device. To exploit this vulnerability, the attacker must have valid credentials on the system. This vulnerability is due to insufficient input validation of the HTTPS URL by the web-based management interface. An attacker could exploit this vulnerability by sending a crafted request that contains directory traversal character sequences to an affected device. A successful exploit could allow the attacker to write arbitrary files to the host system. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

It is possible to read the advisory at sec.cloudapps.cisco.com. The identification of this vulnerability is CVE-2022-20656 since 11/02/2021. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/31/2025). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Network Management Software

Vendor

• Cisco

Name

• Evolved Programmable Network Manager
• Prime Infrastructure

Version

• 1.1
• 1.2
• 2.0
• 2.1
• 2.2
• 3.0
• 3.0.1
• 3.0.2
• 3.0.3
• 3.1
• 3.1.1
• 3.1.2
• 3.1.3
• 4.0
• 4.0.1
• 4.0.2
• 4.0.3
• 4.1
• 4.1.1
• 5.0
• 5.0.1
• 5.0.2
• 5.1
• 5.1.1
• 5.1.2

License

• commercial

Website

• Vendor: https://www.cisco.com/

CPE 2.3info

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CPE 2.2info

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