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GitHub_MCVELIST:CVE-2022-23643

HistoryFeb 15, 2022 - 9:25 p.m.

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

2022-02-1521:25:10

CWE-203

CWE-200

GitHub_M

www.cve.org

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

0.001

Percentile

27.0%

JSON

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.

CNA Affected

[
  {
    "product": "sourcegraph",
    "vendor": "sourcegraph",
    "versions": [
      {
        "status": "affected",
        "version": ">= 3.35, < 3.35.2"
      },
      {
        "status": "affected",
        "version": ">= 3.36, < 3.36.3"
      }
    ]
  }
]

References

github.com/sourcegraph/sourcegraph/pull/30547

github.com/sourcegraph/sourcegraph/security/advisories/GHSA-xqv2-x6f2-w3pf

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

0.001

Percentile

27.0%

JSON

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