Remote code execution in Atlassian Confluence Server
| Risk | Critical |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-26134 |
| CWE-ID | CWE-94 |
| Exploitation vector | Network |
| Public exploit | This vulnerability is being exploited in the wild. |
| Vulnerable software Subscribe |
Atlassian Confluence Server Server applications / Web servers Jira Data Center Server applications / Other server solutions |
| Vendor | Atlassian |
Security Bulletin
This security bulletin contains one critical risk vulnerability.
1) Code Injection
EUVDB-ID: #VU63958
Risk: Critical
CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID: CVE-2022-26134
CWE-ID:
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to improper input validation when processing OGNL expressions. A remote non-authenticated attacker can send a specially crafted request to the Confluence Server and execute arbitrary code on the system.
Note, the vulnerability is being actively exploited in the wild. MitigationInstall update from vendor's website.
Vulnerable software versionsAtlassian Confluence Server: 5.0 - 7.18.0
Jira Data Center: 6.0.0 - 8.22.3
External linkshttp://confluence.atlassian.com/doc/confluence-security-advisory-2022-06-02-1130377146.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
