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CVE-2022-23643— Side-channel attack in Sourcegraph Code Monitors

Quick assessment

Affected
sourcegraph sourcegraph
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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 3.35和3.36版本存在安全漏洞，该漏洞源于代码监视特性中重新引入了一个以前修复的侧通道漏洞，在这个漏洞中，私有源代码中的字符串可能被经过身份验证但未经授权的参与者猜测。

CVSS 6.5 · Medium EPSS 0.80% · P53

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2022-23643

Vulnerability Information
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Vulnerability Title
Side-channel attack in Sourcegraph Code Monitors
Source: CVE Program / CVE List V5
Vulnerability Description
Sourcegraph is a code search and navigation engine. Sourcegraph versions 3.35 and 3.36 reintroduced a previously fixed side-channel vulnerabilitity in the Code Monitoring feature where strings in private source code could be guessed by an authenticated but unauthorized actor. This issue affects only the Code Monitoring feature, whereas CVE-2021-43823 also affected saved searches. A successful attack would require an authenticated bad actor to create many Code Monitors to receive confirmation that a specific string exists. This could allow an attacker to guess formatted tokens in source code, such as API keys. This issue was patched in versions 3.35.2 and 3.36.3 of Sourcegraph. Those who are unable to upgrade may disable the Code Monitor feature in their installation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Sourcegraph 安全漏洞
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 3.35和3.36版本存在安全漏洞，该漏洞源于代码监视特性中重新引入了一个以前修复的侧通道漏洞，在这个漏洞中，私有源代码中的字符串可能被经过身份验证但未经授权的参与者猜测。
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
sourcegraph sourcegraph >= 3.35, < 3.35.2 -

II. Public POCs for CVE-2022-23643

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III. Intelligence Information for CVE-2022-23643

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Patches & Fixes for CVE-2022-23643 (1)

Vendor Advisories for CVE-2022-23643 (1)

IV. Related Vulnerabilities

Same product: sourcegraph
Same vendor: sourcegraph
Same weakness: CWE-200

V. Comments for CVE-2022-23643

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