Path traversal in Atlassian Bitbucket Server



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-3397
CWE-ID CWE-22
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Bitbucket Server
Server applications / Application servers

Vendor Atlassian

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Path traversal

EUVDB-ID: #VU18629

Risk: High

CVSSv4.0: 2.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:U/U:Amber]

CVE-ID: CVE-2019-3397

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences via the Data Center migration tool. A remote attacker with authenticated user with admin permissions can send a specially crafted HTTP request and read or write to arbitrary files on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Bitbucket Server: 5.13.0 - 6.1.1

CPE2.3 External links

https://packetstormsecurity.com/files/download/153052/bitbucket-traversal.txt
https://jira.atlassian.com/browse/BSERV-11706


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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