CVE-2021-43823
"Sourcegraph Side-Channel Disclosure of Private Source Code"
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.
INFO
Published Date :
Dec. 13, 2021, 8:15 p.m.
Last Modified :
Nov. 21, 2024, 6:29 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-43823.
| URL | Resource |
|---|---|
| https://github.com/sourcegraph/sourcegraph/commit/a88d90a8302c492282186d39718cd8fb093c14fa | Patch Third Party Advisory |
| https://github.com/sourcegraph/sourcegraph/security/advisories/GHSA-cpq7-hmvv-29w9 | Third Party Advisory |
| https://github.com/sourcegraph/sourcegraph/commit/a88d90a8302c492282186d39718cd8fb093c14fa | Patch Third Party Advisory |
| https://github.com/sourcegraph/sourcegraph/security/advisories/GHSA-cpq7-hmvv-29w9 | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-43823 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-43823 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/sourcegraph/sourcegraph/commit/a88d90a8302c492282186d39718cd8fb093c14fa Added Reference https://github.com/sourcegraph/sourcegraph/security/advisories/GHSA-cpq7-hmvv-29w9 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Dec. 16, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:N/A:N) Changed Reference Type https://github.com/sourcegraph/sourcegraph/commit/a88d90a8302c492282186d39718cd8fb093c14fa No Types Assigned https://github.com/sourcegraph/sourcegraph/commit/a88d90a8302c492282186d39718cd8fb093c14fa Patch, Third Party Advisory Changed Reference Type https://github.com/sourcegraph/sourcegraph/security/advisories/GHSA-cpq7-hmvv-29w9 No Types Assigned https://github.com/sourcegraph/sourcegraph/security/advisories/GHSA-cpq7-hmvv-29w9 Third Party Advisory Added CWE NIST CWE-203 Added CPE Configuration OR *cpe:2.3:a:sourcegraph:sourcegraph:*:*:*:*:*:*:*:* versions up to (excluding) 3.33.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-43823 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-43823
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} -0.01%
score
0.21439
percentile