Executive Summary

Informations
Name CVE-2021-32785 First vendor Publication 2021-07-22
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:N/A:P)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. When mod_auth_openidc versions prior to 2.4.9 are configured to use an unencrypted Redis cache (`OIDCCacheEncrypt off`, `OIDCSessionType server-cache`, `OIDCCacheType redis`), `mod_auth_openidc` wrongly performed argument interpolation before passing Redis requests to `hiredis`, which would perform it again and lead to an uncontrolled format string bug. Initial assessment shows that this bug does not appear to allow gaining arbitrary code execution, but can reliably provoke a denial of service by repeatedly crashing the Apache workers. This bug has been corrected in version 2.4.9 by performing argument interpolation only once, using the `hiredis` API. As a workaround, this vulnerability can be mitigated by setting `OIDCCacheEncrypt` to `on`, as cache keys are cryptographically hashed before use when this option is enabled.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32785

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 250
Application 1

Sources (Detail)

https://github.com/zmartzone/mod_auth_openidc/commit/dc672688dc1f2db7df8ad4ab...
https://github.com/zmartzone/mod_auth_openidc/releases/tag/v2.4.9
https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-55r8-6...
https://lists.debian.org/debian-lts-announce/2023/04/msg00034.html
https://security.netapp.com/advisory/ntap-20210902-0001/
https://www.oracle.com/security-alerts/cpuapr2022.html
Source Url

Alert History

If you want to see full details history, please login or register.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Date Informations
2024-11-28 13:56:57
  • Multiple Updates
2024-08-02 13:25:28
  • Multiple Updates
2024-08-02 01:25:40
  • Multiple Updates
2024-02-01 21:28:36
  • Multiple Updates
2024-02-01 17:27:11
  • Multiple Updates
2024-02-01 13:28:23
  • Multiple Updates
2024-02-01 12:23:58
  • Multiple Updates
2024-01-31 00:27:58
  • Multiple Updates
2023-09-05 13:19:59
  • Multiple Updates
2023-09-05 01:23:29
  • Multiple Updates
2023-09-02 13:18:35
  • Multiple Updates
2023-09-02 01:23:50
  • Multiple Updates
2023-08-12 13:24:42
  • Multiple Updates
2023-08-12 01:23:04
  • Multiple Updates
2023-08-11 13:16:57
  • Multiple Updates
2023-08-11 01:23:50
  • Multiple Updates
2023-08-06 13:14:57
  • Multiple Updates
2023-08-06 01:22:49
  • Multiple Updates
2023-08-04 13:15:19
  • Multiple Updates
2023-08-04 01:23:10
  • Multiple Updates
2023-07-14 13:15:23
  • Multiple Updates
2023-07-14 01:22:58
  • Multiple Updates
2023-05-31 00:27:47
  • Multiple Updates
2023-05-30 21:26:52
  • Multiple Updates
2023-05-26 00:27:43
  • Multiple Updates
2023-05-01 05:27:31
  • Multiple Updates
2023-03-29 02:17:33
  • Multiple Updates
2023-03-28 12:23:11
  • Multiple Updates
2022-10-11 13:07:18
  • Multiple Updates
2022-10-11 01:22:40
  • Multiple Updates
2022-05-11 00:23:08
  • Multiple Updates
2022-04-20 09:23:15
  • Multiple Updates
2021-10-18 17:23:05
  • Multiple Updates
2021-09-02 13:23:00
  • Multiple Updates
2021-08-04 21:23:14
  • Multiple Updates
2021-07-23 21:23:11
  • Multiple Updates
2021-07-23 05:22:47
  • First insertion