QID 730309

QID 730309: Atlassian Bitbucket Privilege Escalation Vulnerability (CVE-2020-36233)

The Microsoft Windows Installer for Atlassian Bitbucket Server allows local attackers to escalate privileges because of weak permissions on the installation directory.

Affected Bitbucket Versions:
all versions before 6.10.9,
7.x before 7.6.4, and
from version 7.7.0 before 7.10.1

Note: Only Windows installer of Atlassian Bitbucket is affected.

Detection Logic:(Unauthenticated)
This QID checks for the vulnerable versions of Bitbucket via a GET login request.

Successful exploitation of this vulnerability allows local attackers to escalate privileges because of weak permissions on the installation directory.

CVSS V3 rated as High - 7.8 severity.

CVSS V2 rated as Medium - 4.6 severity.

Solution

Workaround:
Vendor has released fix to this issue. Refer to Atlassian Bitbucket

Vendor References

BSERV-12753 - jira.atlassian.com/browse/BSERV-12753

CVEs related to QID 730309

CVE-2020-36233 |

Software Advisories

Advisory ID	Software	Component	Link
BSERV-12753			jira.atlassian.com/browse/BSERV-12753

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