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CVE-2021-43823

6.5 · MEDIUM

Sourcegraph is a code search and navigation engine.

Published Dec 13, 2021CWE-200EPSS 0.86%

Overview

CVE-2021-43823 is a medium-severity vulnerability. It was published on December 13, 2021 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Sourcegraph is a code search and navigation engine. Sourcegraph prior to version 3.33.2 is vulnerable to a side-channel attack where strings in private source code could be guessed by an authenticated but unauthorized actor. This issue affects the Saved Searches and Code Monitoring features. A successful attack would require an authenticated bad actor to create many Saved Searches or 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 version 3.33.2 and any future versions of Sourcegraph. We strongly encourage upgrading to secure versions. If you are unable to, you may disable Saved Searches and Code Monitors.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/sourcegraph/sourcegraph/commit/a88d90a8302c492282186d39718cd8fb093c14faGitHubgithub.com/sourcegraph/sourcegraph/security/advisories/GHSA-cpq7-hmvv-29w9GitHubgithub.com/sourcegraph/sourcegraph/commit/a88d90a8302c492282186d39718cd8fb093c14faGitHubgithub.com/sourcegraph/sourcegraph/security/advisories/GHSA-cpq7-hmvv-29w9

How CyberStrike helps

Frequently asked questions

What is CVE-2021-43823?

CVE-2021-43823 is a medium-severity vulnerability. It was published on December 13, 2021 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2021-43823?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-43823?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-43823?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-43823 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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