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CVE-2022-23642— Code Injection in Sourcegraph

Quick assessment

Affected
sourcegraph sourcegraph
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Sourcegraph是美国Sourcegraph公司的一款开源的代码搜索和导航工具。 Sourcegraph 存在代码注入漏洞，该漏洞允许攻击者设置git的core.sshCommand选项，该选项将git设置为在需要连接到远程系统时使用指定的命令而不是ssh。此漏洞的利用取决于 Sourcegraph 的部署方式。能够向 gitserver 等内部服务发出 HTTP 请求的攻击者能够利用它。

CVSS 8.8 · High EPSS 74.31% · P99

Public Exploits 2

ExploitDB · 1 EDB-50964 [remote]
Metasploit · 1 sourcegraph_gitserver_sshcmd.rb [exploit]
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I. Basic Information for CVE-2022-23642

Vulnerability Information
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Vulnerability Title
Code Injection in Sourcegraph
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Sourcegraph 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sourcegraph是美国Sourcegraph公司的一款开源的代码搜索和导航工具。 Sourcegraph 存在代码注入漏洞，该漏洞允许攻击者设置git的core.sshCommand选项，该选项将git设置为在需要连接到远程系统时使用指定的命令而不是ssh。此漏洞的利用取决于 Sourcegraph 的部署方式。能够向 gitserver 等内部服务发出 HTTP 请求的攻击者能够利用它。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
sourcegraph sourcegraph < 3.37 -

II. Public POCs for CVE-2022-23642

# POC Description Source Link Shenlong Link
1 PoC for Sourcegraph Gitserver < 3.37.0 RCE (CVE-2022-23642) https://github.com/Altelus1/CVE-2022-23642 POC Details
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III. Intelligence Information for CVE-2022-23642

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Patches & Fixes for CVE-2022-23642 (1)

Vendor Advisories for CVE-2022-23642 (1)

Exploits & Public PoCs for CVE-2022-23642 (2)

IV. Related Vulnerabilities

Same product: sourcegraph
Same vendor: sourcegraph
Same weakness: CWE-94

V. Comments for CVE-2022-23642

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