oauth-ruby gem up to 0.5.4 on ruby X.509 Certificate lib/oauth/consumer.rb certificate validation

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in oauth-ruby gem up to 0.5.4 on ruby. Affected by this issue is some unknown functionality in the library lib/oauth/consumer.rb of the component X.509 Certificate Handler. The manipulation leads to certificate validation. This vulnerability is listed as CVE-2016-11086. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in oauth-ruby gem up to 0.5.4 on ruby (Ruby Gem). This issue affects an unknown code in the library lib/oauth/consumer.rb of the component X.509 Certificate 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. The summary by CVE is:

lib/oauth/consumer.rb in the oauth-ruby gem through 0.5.4 for Ruby does not verify server X.509 certificates if a certificate bundle cannot be found, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information.

The weakness was presented 04/21/2023 as 137. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2016-11086 since 09/24/2020. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

The exploit is available at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.6
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.4
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: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/24/2020 🔍
04/21/2023 +939 days 🔍
04/21/2023 +0 days 🔍
04/21/2023 +0 days 🔍

Sourcesinfo

Advisory: 137
Status: Confirmed

CVE: CVE-2016-11086 (🔍)
GCVE (CVE): GCVE-0-2016-11086
GCVE (VulDB): GCVE-100-227063
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/21/2023 22:39
Changes: 04/21/2023 22:39 (60)
Complete: 🔍
Cache ID: 216::103

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