Atlassian Sourcetree security update for git

1) Insufficiently protected credentials

EUVDB-ID: #VU27258

Risk: Medium

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2020-5260

CWE-ID: CWE-522 - Insufficiently Protected Credentials

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to the Git can be tricked into sending private credentials to a host controlled by an attacker. A remote attacker can send a specially crafted URL to "git clone" that will present stored credentials for any host to a host of their choosing.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Sourcetree for macOS: 1.2.1 - 4.0.1

Sourcetree for Windows: 0.8b - 3.3.8

CPE2.3

• cpe:2.3:a:atlassian:sourcetree_for_macos:1.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:sourcetree_for_macos:1.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:sourcetree_for_macos:1.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:sourcetree_for_windows:0.8b:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:sourcetree_for_windows:0.8.1b:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:sourcetree_for_windows:0.8.2b:*:*:*:*:*:*:*

External links

https://confluence.atlassian.com/sourcetreekb/sourcetree-security-advisory-2020-09-02-1021222895.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.