Phabricator Mercurial hg --config/--debugger command injection

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Phabricator. The impacted element is an unknown function of the component Mercurial hg. Performing a manipulation of the argument --config/--debugger results in command injection. This vulnerability is cataloged as CVE-2017-17536. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Phabricator (affected version not known). This affects some unknown functionality of the component Mercurial hg. The manipulation of the argument --config/--debugger with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Phabricator before 2017-11-10 does not block the --config and --debugger flags to the Mercurial hg program, which allows remote attackers to execute arbitrary code by using the web UI to browse a branch whose name begins with a --config= or --debugger= substring.

The bug was discovered 11/10/2017. The weakness was shared 12/11/2017 (Website). The advisory is shared at hackerone.com. This vulnerability is uniquely identified as CVE-2017-17536 since 12/11/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

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Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
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: 🔍

Timelineinfo

11/10/2017 🔍
11/10/2017 +0 days 🔍
12/11/2017 +31 days 🔍
12/11/2017 +0 days 🔍
12/11/2017 +0 days 🔍
12/11/2017 +0 days 🔍
12/13/2019 +732 days 🔍

Sourcesinfo

Advisory: hackerone.com
Status: Not defined

CVE: CVE-2017-17536 (🔍)
GCVE (CVE): GCVE-0-2017-17536
GCVE (VulDB): GCVE-100-110469

Entryinfo

Created: 12/11/2017 15:34
Updated: 12/13/2019 16:37
Changes: 12/11/2017 15:34 (56), 12/13/2019 16:37 (1)
Complete: 🔍
Cache ID: 216::103

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