VDB-112740 · CVE-2017-18036 · BID 102932

Atlassian Bitbucket Server up to 5.2.x Github Repository Importer server-side request forgery

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Atlassian Bitbucket Server up to 5.2.x. Affected by this issue is some unknown functionality of the component Github Repository Importer. The manipulation results in server-side request forgery. This vulnerability is known as CVE-2017-18036. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Atlassian Bitbucket Server up to 5.2.x. It has been classified as critical. Affected is an unknown code block of the component Github Repository Importer. The manipulation with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The Github repository importer in Atlassian Bitbucket Server before version 5.3.0 allows remote attackers to determine if a service they could not otherwise reach has open ports via a Server Side Request Forgery (SSRF) vulnerability.

The bug was discovered 01/17/2018. The weakness was published 02/02/2018 (Website). The advisory is shared for download at jira.atlassian.com. This vulnerability is traded as CVE-2017-18036 since 01/17/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The requirement for exploitation is a authentication. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 16 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 5.3.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 102932†). Similar entries are available at VDB-112742 and VDB-112741. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
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: Server-side request forgery
CWE: CWE-918
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 5.3.0

Timelineinfo

01/17/2018 🔍
01/17/2018 +0 days 🔍
02/02/2018 +16 days 🔍
02/02/2018 +0 days 🔍
02/02/2018 +0 days 🔍
02/03/2018 +1 days 🔍
01/01/2020 +697 days 🔍

Sourcesinfo

Vendor: atlassian.com

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

CVE: CVE-2017-18036 (🔍)
GCVE (CVE): GCVE-0-2017-18036
GCVE (VulDB): GCVE-100-112740
SecurityFocus: 102932 - Atlassian Bitbucket Server CVE-2017-18036 SSRF Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 02/03/2018 08:59
Updated: 01/01/2020 08:22
Changes: 02/03/2018 08:59 (61), 01/01/2020 08:22 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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