CVE-2021-29443
"Jose NPM Library Padding Oracle Vulnerability"
Description
jose is an npm library providing a number of cryptographic operations. In vulnerable versions AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed `JWEDecryptionFailed` would be thrown. A possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). All major release versions have had a patch released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `^1.28.1 || ^2.0.5 || >=3.11.4`. Users should upgrade their v1.x dependency to ^1.28.1, their v2.x dependency to ^2.0.5, and their v3.x dependency to ^3.11.4. Thanks to Jason from Microsoft Vulnerability Research (MSVR) for bringing this up and Eva Sarafianou (@esarafianou) for helping to score this advisory.
INFO
Published Date :
April 16, 2021, 6:15 p.m.
Last Modified :
April 23, 2021, 8:38 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.2
Affected Products
The following products are affected by CVE-2021-29443
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
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-2021-29443.
| URL | Resource |
|---|---|
| https://github.com/panva/jose/security/advisories/GHSA-58f5-hfqc-jgch | Patch Third Party Advisory |
| https://www.npmjs.com/package/jose | 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-2021-29443 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-29443 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 -
Initial Analysis by [email protected]
Apr. 23, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/panva/jose/security/advisories/GHSA-58f5-hfqc-jgch No Types Assigned https://github.com/panva/jose/security/advisories/GHSA-58f5-hfqc-jgch Patch, Third Party Advisory Changed Reference Type https://www.npmjs.com/package/jose No Types Assigned https://www.npmjs.com/package/jose Third Party Advisory Added CWE NIST CWE-203 Added CPE Configuration OR *cpe:2.3:a:jose_project:jose:*:*:*:*:*:node.js:*:* versions from (including) 1.0.0 up to (excluding) 1.28.1 *cpe:2.3:a:jose_project:jose:*:*:*:*:*:node.js:*:* versions from (including) 2.0.0 up to (excluding) 2.0.5 *cpe:2.3:a:jose_project:jose:*:*:*:*:*:node.js:*:* versions from (including) 3.0.0 up to (excluding) 3.11.4
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-29443 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-2021-29443
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.15 }} 0.01%
score
0.50948
percentile