Atlassian Bitbucket Server 4.x < 4.7.1 Directory Traversal

Medium Nessus Network Monitor Plugin ID 9940

Synopsis

The remote Bitbucket server is affected by an Dierctory Traversal attack vector.

Description

Versions of Bitbucket 4.x prior to 4.7.1 contain a flaw that allows traversing outside of a restricted path. The issue is due to the program not properly sanitizing user input, specifically path traversal style attacks (e.g. '../') when handling user repository pull requests. With a specially crafted request, an authenticated remote attacker can read the first line of arbitrary files.

Solution

Upgrade to Bitbucket version 4.7.1 or later.

See Also

https://confluence.atlassian.com/jira/jira-and-hipchat-for-jira-plugin-security-advisory-2015-08-26-776650785.html

Plugin Details

Severity: Medium

ID: 9940

Family: CGI

Published: 2017/02/08

Modified: 2017/04/04

Dependencies: 9566

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

CVSSv3

Base Score: 6.2

Temporal Score: 5.9

Vector: CVSS3#AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Temporal Vector: CVSS3#E:X/RL:O/RC:C

Vulnerability Information

Patch Publication Date: 2015/08/21

Vulnerability Publication Date: 2015/08/26

Reference Information

CVE: CVE-2016-4320