CVE-2021-38385
Tor Cryptographic Authentication Remote Assertion Failure
Description
Tor before 0.3.5.16, 0.4.5.10, and 0.4.6.7 mishandles the relationship between batch-signature verification and single-signature verification, leading to a remote assertion failure, aka TROVE-2021-007.
INFO
Published Date :
Aug. 30, 2021, 5:15 a.m.
Last Modified :
May 3, 2023, 12:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-38385 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2021-38385.
| URL | Resource |
|---|---|
| https://blog.torproject.org | Release Notes Vendor Advisory |
| https://blog.torproject.org/node/2062 | Release Notes Vendor Advisory |
| https://bugs.torproject.org/tpo/core/tor/40078 | Exploit Issue Tracking Vendor Advisory |
| https://security.gentoo.org/glsa/202305-11 |
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).
Automatic monitor github cve using Github Actions
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-38385 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-38385 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 03, 2023
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202305-11 [No Types Assigned] -
Initial Analysis by [email protected]
Sep. 02, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://blog.torproject.org No Types Assigned https://blog.torproject.org Release Notes, Vendor Advisory Changed Reference Type https://blog.torproject.org/node/2062 No Types Assigned https://blog.torproject.org/node/2062 Release Notes, Vendor Advisory Changed Reference Type https://bugs.torproject.org/tpo/core/tor/40078 No Types Assigned https://bugs.torproject.org/tpo/core/tor/40078 Exploit, Issue Tracking, Vendor Advisory Added CWE NIST CWE-617 Added CPE Configuration OR *cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* versions up to (excluding) 0.3.5.16 *cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* versions from (including) 0.4.0.0 up to (excluding) 0.4.5.10 *cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* versions from (including) 0.4.6.0 up to (excluding) 0.4.6.7
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-38385 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-2021-38385
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.25 }} 0.03%
score
0.64518
percentile