CVE-2021-26084

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-26084
In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html Exploit Third Party Advisory VDB Entry
https://jira.atlassian.com/browse/CONFSERVER-67940 Issue Tracking Patch Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
History

08 Aug 2023, 14:21

Type Values Removed Values Added
CWE CWE-74 CWE-917

10 Jun 2022, 14:26

Type Values Removed Values Added
References (MISC) http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html - (MISC) http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html - Exploit, Third Party Advisory, VDB Entry
CPE cpe:2.3:a:atlassian:confluence:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:*		 cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
First Time Atlassian confluence Data Center

08 Jun 2022, 18:15

Type Values Removed Values Added
References
  • (MISC) http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html -

30 Mar 2022, 13:29

Type Values Removed Values Added
First Time Atlassian jira Data Center
CPE cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*

23 Feb 2022, 04:15

Type Values Removed Values Added
References
  • {'url': 'http://packetstormsecurity.com/files/164122/Atlassian-Confluence-WebWork-OGNL-Injection.html', 'name': 'http://packetstormsecurity.com/files/164122/Atlassian-Confluence-WebWork-OGNL-Injection.html', 'tags': ['Exploit', 'Third Party Advisory', 'VDB Entry'], 'refsource': 'MISC'}
  • {'url': 'http://packetstormsecurity.com/files/164013/Confluence-Server-7.12.4-OGNL-Injection-Remote-Code-Execution.html', 'name': 'http://packetstormsecurity.com/files/164013/Confluence-Server-7.12.4-OGNL-Injection-Remote-Code-Execution.html', 'tags': ['Exploit', 'Third Party Advisory', 'VDB Entry'], 'refsource': 'MISC'}

13 Dec 2021, 16:05

Type Values Removed Values Added
CPE cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*

16 Sep 2021, 12:37

Type Values Removed Values Added
References (MISC) http://packetstormsecurity.com/files/164122/Atlassian-Confluence-WebWork-OGNL-Injection.html - (MISC) http://packetstormsecurity.com/files/164122/Atlassian-Confluence-WebWork-OGNL-Injection.html - Exploit, Third Party Advisory, VDB Entry

10 Sep 2021, 07:15

Type Values Removed Values Added
References
  • (MISC) http://packetstormsecurity.com/files/164122/Atlassian-Confluence-WebWork-OGNL-Injection.html -

07 Sep 2021, 14:56

Type Values Removed Values Added
References (MISC) http://packetstormsecurity.com/files/164013/Confluence-Server-7.12.4-OGNL-Injection-Remote-Code-Execution.html - Exploit, Third Party Advisory (MISC) http://packetstormsecurity.com/files/164013/Confluence-Server-7.12.4-OGNL-Injection-Remote-Code-Execution.html - Exploit, Third Party Advisory, VDB Entry

06 Sep 2021, 12:15

Type Values Removed Values Added
Summary In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an authenticated user, and in some instances an unauthenticated user, to execute arbitrary code on a Confluence Server or Data Center instance. The vulnerable endpoints can be accessed by a non-administrator user or unauthenticated user if ‘Allow people to sign up to create their account’ is enabled. To check whether this is enabled go to COG > User Management > User Signup Options. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5. In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5.

02 Sep 2021, 02:59

Type Values Removed Values Added
References (MISC) https://jira.atlassian.com/browse/CONFSERVER-67940 - (MISC) https://jira.atlassian.com/browse/CONFSERVER-67940 - Issue Tracking, Patch, Vendor Advisory
References (MISC) http://packetstormsecurity.com/files/164013/Confluence-Server-7.12.4-OGNL-Injection-Remote-Code-Execution.html - (MISC) http://packetstormsecurity.com/files/164013/Confluence-Server-7.12.4-OGNL-Injection-Remote-Code-Execution.html - Exploit, Third Party Advisory
CWE CWE-74
CVSS v2 : unknown
v3 : unknown 		v2 : 7.5
v3 : 9.8
CPE cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence:*:*:*:*:*:*:*:*

01 Sep 2021, 18:15

Type Values Removed Values Added
References
  • (MISC) http://packetstormsecurity.com/files/164013/Confluence-Server-7.12.4-OGNL-Injection-Remote-Code-Execution.html -

30 Aug 2021, 07:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-08-30 07:15

Updated : 2023-12-10 13:55

NVD link : CVE-2021-26084

Mitre link : CVE-2021-26084

CVE.ORG link : CVE-2021-26084

JSON object : View

Products Affected

atlassian

  • confluence_server
  • confluence_data_center
CWE
CWE-917

Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')