CVE-2021-31556 - Use of a Broken or Risky Cryptographic Algorithm

Severity

98%

Complexity

39%

Confidentiality

98%

An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. MWOAuthConsumerSubmitControl.php does not ensure that the length of an RSA key will fit in a MySQL blob.

CVSS 3.1 Base Score 9.8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P).

Demo Examples

Use of a Broken or Risky Cryptographic Algorithm

CWE-327

These code examples use the Data Encryption Standard (DES).


               
EVP_des_ecb();

               
des.initEncrypt(key2);

               
}
return $encryptedPassword;

Once considered a strong algorithm, DES now regarded as insufficient for many applications. It has been replaced by Advanced Encryption Standard (AES).

Overview

First reported 3 years ago

2021-08-12 22:15:00

Last updated 3 years ago

2021-11-28 23:15:00

Affected Software

Mediawiki

References

https://phabricator.wikimedia.org/T277380

https://gerrit.wikimedia.org/r/q/I13ff0350a9a0a3cd5ab3e1f82dd0d8d9c13cf9e9

https://phabricator.wikimedia.org/T277380

Permissions Required, Vendor Advisory

https://gerrit.wikimedia.org/r/q/I13ff0350a9a0a3cd5ab3e1f82dd0d8d9c13cf9e9

Patch, Vendor Advisory

FEDORA-2021-eee8b7514f

FEDORA-2021-56d8173b5e

FEDORA-2021-3dd1b66cbf

FEDORA-2021-eee8b7514f

Mailing List, Third Party Advisory

FEDORA-2021-56d8173b5e

Mailing List, Third Party Advisory

FEDORA-2021-3dd1b66cbf

Mailing List, Third Party Advisory

Stay updated

ExploitPedia is constantly evolving. Sign up to receive a notification when we release additional functionality.

Get in touch

If you'd like to report a bug or have any suggestions for improvements then please do get in touch with us using this form. We will get back to you as soon as we can.