Netgate pfSense 2.7.0 XML File config.xml restore_rrddata command injection

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

A vulnerability was found in Netgate pfSense 2.7.0 (Firewall Software). It has been rated as critical. Affected by this issue is the function restore_rrddata of the file config.xml of the component XML File Handler. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A command injection vulnerability in the function restore_rrddata() of Netgate pfSense v2.7.0 allows authenticated attackers to execute arbitrary commands via manipulating the contents of an XML file supplied to the component config.xml.

The weakness was disclosed 03/18/2023 as 13935. The advisory is shared for download at redmine.pfsense.org. This vulnerability is handled as CVE-2023-27253 since 02/27/2023. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.

By approaching the search of inurl:config.xml it is possible to find vulnerable targets with Google Hacking.

Applying the patch ca80d18493f8f91b21933ebd6b714215ae1e5e94 is able to eliminate this problem. The bugfix is ready for download at github.com.

Productinfo

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Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
ATT&CK: T1202

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: ca80d18493f8f91b21933ebd6b714215ae1e5e94

Timelineinfo

02/27/2023 🔍
03/18/2023 +19 days 🔍
03/18/2023 +0 days 🔍
03/18/2023 +0 days 🔍

Sourcesinfo

Advisory: 13935
Status: Confirmed

CVE: CVE-2023-27253 (🔍)

Entryinfo

Created: 03/18/2023 08:37
Changes: 03/18/2023 08:37 (45)
Complete: 🔍

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