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Bug
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Resolution: Fixed
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Highest
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None
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None
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Severity 1 - Critical
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Bamboo has a resource which accepts a YAML file and did not sufficiently restrict which classes could be loaded. An attacker who can login to Bamboo as a user is able to use this vulnerability to execute Java code of their choice on systems that have a vulnerable version of Bamboo.
Affected versions:
- Versions of Bamboo starting with 6.0.0 before 6.0.5 (the fixed version for 6.0.x ) and from before 6.1.4 (the fixed version for 6.1.x) are affected by this vulnerability.
Fix:
- Bamboo 6.2.1 is available to download from https://www.atlassian.com/software/bamboo/download.
- Bamboo 6.1.4 is available to download from https://www.atlassian.com/software/bamboo/download-archives.
- Bamboo 6.0.5 is available to download from https://www.atlassian.com/software/bamboo/download-archives.
For additional details see the full advisory.
This is an independent assessment and you should evaluate its applicability to your own IT environment.
CVSS v3 score: 9.9 => Critical severity
Exploitability Metrics
Scope Metric
Impact Metrics
https://asecurityteam.bitbucket.io/cvss_v3/#CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H