CVE-2022-23642

Sourcegraph is a code search and navigation engine. Sourcegraph prior to version 3.37 is vulnerable to remote code execution in the `gitserver` service. The service acts as a git exec proxy, and fails to properly restrict calling `git config`. This allows an attacker to set the git `core.sshCommand` option, which sets git to use the specified command instead of ssh when they need to connect to a remote system. Exploitation of this vulnerability depends on how Sourcegraph is deployed. An attacker able to make HTTP requests to internal services like gitserver is able to exploit it. This issue is patched in Sourcegraph version 3.37. As a workaround, ensure that requests to gitserver are properly protected.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.0 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:S/C:P/I:P/A:P

Exploitability : 6.8 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/sourcegraph/sourcegraph/security/advisories/GHSA-qcmp-fx72-q8q9	Patch Third Party Advisory
https://github.com/sourcegraph/sourcegraph/pull/30833	Patch Third Party Advisory
http://packetstormsecurity.com/files/167506/Sourcegraph-Gitserver-3.36.3-Remote-Code-Execution.html
http://packetstormsecurity.com/files/167741/Sourcegraph-gitserver-sshCommand-Remote-Command-Execution.html

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Configurations

Configuration 1 (hide)

cpe:2.3:a:sourcegraph:sourcegraph:*:*:*:*:*:*:*:*

Information

Published : 2022-02-18 15:15

Updated : 2022-07-13 12:15

NVD link : CVE-2022-23642

Mitre link : CVE-2022-23642

JSON object : View

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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Products Affected

sourcegraph

sourcegraph

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