SB2019052910 - Path traversal in Atlassian Bitbucket Server



SB2019052910 - Path traversal in Atlassian Bitbucket Server

Published: May 29, 2019

Security Bulletin ID SB2019052910
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Path traversal (CVE-ID: CVE-2019-3397)

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

CVSSv4: 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


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.


Remediation

Install update from vendor's website.