PT-2022-2556 · Atlassian · Bitbucket

Benny Jacob

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Published

2022-02-25

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Updated

2024-10-03

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CVE-2022-26133

CVSS v2.0

10

Critical

VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Name of the Vulnerable Software and Affected Versions Atlassian Bitbucket Data Center versions 5.14.0 through 7.6.13 Atlassian Bitbucket Data Center versions 7.7.0 through 7.17.5 Atlassian Bitbucket Data Center versions 7.18.0 through 7.18.3 Atlassian Bitbucket Data Center versions 7.19.0 through 7.19.3 Atlassian Bitbucket Data Center version 7.20.0
Description The issue is related to the SharedSecretClusterAuthenticator in Atlassian Bitbucket Data Center, which allows a remote, unauthenticated attacker to execute arbitrary code via Java deserialization. This can be exploited by an attacker to gain unauthorized access. The vulnerability is also associated with the restoration of untrusted data in memory, which can lead to the execution of arbitrary code.
Recommendations For versions 5.14.0 through 7.6.13, update to version 7.6.14 or later. For versions 7.7.0 through 7.17.5, update to version 7.17.6 or later. For versions 7.18.0 through 7.18.3, update to version 7.18.4 or later. For versions 7.19.0 through 7.19.3, update to version 7.19.4 or later. For version 7.20.0, update to a version later than 7.20.0. As a temporary workaround, consider disabling the SharedSecretClusterAuthenticator until a patch is available.

Exploit

Fix

Deserialization of Untrusted Data

Weakness Enumeration

Related Identifiers

BDU:2022-02985
CVE-2022-26133

Affected Products

Bitbucket