CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
99.9%
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.
Recent assessments:
wvu-r7 at September 02, 2021 1:27am UTC reported:
Please see the Rapid7 analysis. Thank you to Jang (@testanull) for being a great collaborator. :)
NinjaOperator at September 01, 2021 5:38pm UTC reported:
Please see the Rapid7 analysis. Thank you to Jang (@testanull) for being a great collaborator. :)
GhostlaX at September 04, 2021 1:44am UTC reported:
Please see the Rapid7 analysis. Thank you to Jang (@testanull) for being a great collaborator. :)
Cherylyin at September 03, 2021 2:03am UTC reported:
Please see the Rapid7 analysis. Thank you to Jang (@testanull) for being a great collaborator. :)
Assessed Attacker Value: 5
Assessed Attacker Value: 5Assessed Attacker Value: 5
packetstormsecurity.com/files/164013/Confluence-Server-7.12.4-OGNL-Injection-Remote-Code-Execution.html
packetstormsecurity.com/files/164122/Atlassian-Confluence-WebWork-OGNL-Injection.html
packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26084
jira.atlassian.com/browse/CONFSERVER-67940
www.bleepingcomputer.com/news/security/new-cerber-ransomware-targets-confluence-and-gitlab-servers/
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
99.9%