RCE via git-lfs in Sourcetree for Windows - CVE-2021-21237
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
99.4%
There was an argument injection vulnerability in SourceTree for Windows introduced through git-lfs. An attacker could create a malicious repository which, after being cloned in SourceTree for Windows and enabled with git-lfs, is able to exploit this issue to gain code execution on the system. This is the result of an incomplete fix for CVE-2020-27955
Affected versions:
- Version 3.4.2 and earlier
Fix
- You can download the latest version of the [standard installer|https://product-downloads.atlassian.com/software/sourcetree/windows/ga/SourceTreeSetup-3.3.9.exe] or the [enterprise installer|https://product-downloads.atlassian.com/software/sourcetree/windows/ga/SourcetreeEnterpriseSetup_3.3.9.msi].
For additional details, see the [full advisory|https://confluence.atlassian.com/display/SOURCETREEKB/SourceTree+for+Windows+Security+Advisory+24th+March+2021]
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| atlassian | sourcetree | * | cpe:2.3:a:atlassian:sourcetree:*:*:*:*:*:windows:*:* |
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
99.4%