Hammer cli up to 0.9.x Certificate Validation Zone::New certificate validation

CVSS Meta Temp Score
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CTI Interest Score
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8.3$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Hammer cli up to 0.9.x. This vulnerability affects the function Zone::New of the component Certificate Validation Handler. Such manipulation leads to certificate validation. This vulnerability is uniquely identified as CVE-2017-2667. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Hammer cli up to 0.9.x. Affected by this issue is the function Zone::New of the component Certificate Validation Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Hammer CLI, a CLI utility for Foreman, before version 0.10.0, did not explicitly set the verify_ssl flag for apipie-bindings that disable it by default. As a result the server certificates are not checked and connections are prone to man-in-the-middle attacks.

The bug was discovered 03/27/2017. The weakness was disclosed 03/12/2018 with Red Hat (Website). The advisory is shared for download at projects.theforeman.org. This vulnerability is handled as CVE-2017-2667 since 12/01/2016. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1587.003.

The vulnerability was handled as a non-public zero-day exploit for at least 331 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 107053 (RHEL 7 : Satellite Server (RHSA-2018:0336)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236693 (Red Hat Update for Satellite 6.3 (RHSA-2018:0336)).

Upgrading to version 0.10.0 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (107053) and SecurityFocus (BID 97153†). The entries VDB-65919, VDB-87556, VDB-90883 and VDB-90885 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.3

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
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: Certificate validation
CWE: CWE-295 / CWE-287
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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Nessus ID: 107053
Nessus Name: RHEL 7 : Satellite Server (RHSA-2018:0336)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: cli 0.10.0

Timelineinfo

12/01/2016 🔍
03/27/2017 +116 days 🔍
03/27/2017 +0 days 🔍
02/21/2018 +331 days 🔍
02/28/2018 +7 days 🔍
03/12/2018 +12 days 🔍
03/12/2018 +0 days 🔍
03/13/2018 +1 days 🔍
02/21/2023 +1806 days 🔍

Sourcesinfo

Advisory: RHSA-2018:0336
Organization: Red Hat
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-2667 (🔍)
GCVE (CVE): GCVE-0-2017-2667
GCVE (VulDB): GCVE-100-114392
SecurityFocus: 97153 - hammer_cli CVE-2017-2667 SSL Certificate Validation Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 03/13/2018 07:46
Updated: 02/21/2023 11:05
Changes: 03/13/2018 07:46 (73), 01/12/2020 15:57 (5), 02/21/2023 11:05 (4)
Complete: 🔍
Cache ID: 216::103

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