VDB-113426 · CVE-2017-18087 · BID 103038

Atlassian Bitbucket Server up to 5.1.6/5.2.4/5.3.2 Download Commit Source Parameter access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Atlassian Bitbucket Server up to 5.1.6/5.2.4/5.3.2. Impacted is an unknown function of the component Download Commit Source. Such manipulation as part of Parameter leads to access control. This vulnerability is documented as CVE-2017-18087. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Atlassian Bitbucket Server up to 5.1.6/5.2.4/5.3.2. It has been rated as critical. Affected by this issue is an unknown code block of the component Download Commit Source. The manipulation as part of a Parameter leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The download commit resource in Atlassian Bitbucket Server from version 5.1.0 before version 5.1.7, from version 5.2.0 before version 5.2.5, from version 5.3.0 before version 5.3.3 and from version 5.4.0 before version 5.4.1 allows remote attackers to write files to disk potentially allowing them to gain code execution, exploit CVE-2017-1000117 if a vulnerable version of git is in use, and or determine if an internal service exists via an argument injection vulnerability in the at parameter.

The bug was discovered 02/02/2018. The weakness was released 02/15/2018 (Website). The advisory is available at jira.atlassian.com. This vulnerability is handled as CVE-2017-18087 since 02/01/2018. The attack may be launched remotely. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 13 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 5.1.7, 5.2.5 or 5.3.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 103038†). Entry connected to this vulnerability is available at VDB-113427. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Bitbucket Server 5.1.7/5.2.5/5.3.3

Timelineinfo

02/01/2018 🔍
02/02/2018 +1 days 🔍
02/02/2018 +0 days 🔍
02/15/2018 +13 days 🔍
02/15/2018 +0 days 🔍
02/16/2018 +1 days 🔍
02/04/2021 +1084 days 🔍

Sourcesinfo

Vendor: atlassian.com

Advisory: jira.atlassian.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-18087 (🔍)
GCVE (CVE): GCVE-0-2017-18087
GCVE (VulDB): GCVE-100-113426
SecurityFocus: 103038 - Atlassian Bitbucket Server CVE-2017-18087 Arbitrary File Write Remote Code Execution Vulnerability

See also: 🔍

Entryinfo

Created: 02/16/2018 12:44
Updated: 02/04/2021 07:48
Changes: 02/16/2018 12:44 (47), 01/06/2020 06:52 (10), 02/04/2021 07:48 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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