QID 379559

QID 379559: Atlassian Bitbucket Data Center and Server org.json:json Dependency Denial of Service (DoS) Vulnerability (BSERV-19037)

Bitbucket Data Center looks like a single instance of Bitbucket Server to users, but under the hood, it consists of a cluster of multiple machines ("cluster nodes") each running the Bitbucket Server web application, behind a load balancer.

CVE-2023-5072: org.json:json - A bug in the parser means that an input string of modest size can lead to indefinite amounts of memory being used.

Affected version:
7.21.x: prior to 7.21.19
7.17.0 to 7.17.21
8.12.0 to 8.12.6
8.11.0 to 8.11.6
8.10.0 to 8.10.6
8.9.x: prior to 8.9.7
8.13.x: prior to 8.13.3
8.14.x: prior to 8.14.2
8.15.x: prior to 8.15.1

QID Detection Logic(Unauthenticated):
The QID checks for vulnerable versions of Atlassian Bitbucket Server by sending a GET request to /login endpoint.

QID Detection Logic:(Authenticated)
The QID checks for vulnerable versions of Atlassian Bitbucket Server by checking the registry entry for windows and invoking commands in linux.

Note: Here, we are not checking actual version of org.json:json Dependency. Hence, QID set as practice.

Successful exploitation of this vulnerability allows an unauthenticated attacker to expose assets in your environment susceptible to exploitation.

CVSS V3 rated as High - 7.5 severity.

CVSS V2 rated as Medium - 5.4 severity.

Solution

The vendor has released fix for this vulnerability. Customers are advised to refer to BSERV-19037 for updates pertaining to this vulnerability.

Vendor References

BSERV-19037 - jira.atlassian.com/browse/BSERV-19037

CVEs related to QID 379559

CVE-2023-5072 |

Software Advisories

Advisory ID	Software	Component	Link
BSERV-19037			jira.atlassian.com/browse/BSERV-19037

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