Jenkins up to 2.218/LTS 2.204.1 HMAC timing discrepancy

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Jenkins up to 2.218/LTS 2.204.1. The affected element is an unknown function of the component HMAC Handler. Performing a manipulation results in timing discrepancy. This vulnerability is cataloged as CVE-2020-2102. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Jenkins up to 2.218/LTS 2.204.1 (Continuous Integration Software). This affects some unknown functionality of the component HMAC Handler. The manipulation with an unknown input leads to a timing discrepancy vulnerability. CWE is classifying the issue as CWE-208. Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not. This is going to have an impact on confidentiality. The summary by CVE is:

Jenkins 2.218 and earlier, LTS 2.204.1 and earlier used a non-constant time comparison function when validating an HMAC.

The weakness was shared 01/29/2020 (oss-sec). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2020-2102 since 12/05/2019. The exploitability is told to be difficult. It is possible to initiate the attack remotely. A authentication is required for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

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

The entries VDB-149526, VDB-149527, VDB-149528 and VDB-149530 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.2
VulDB Meta Temp Score: 4.2

VulDB Base Score: 3.1
VulDB Temp Score: 3.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
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: Timing discrepancy
CWE: CWE-208 / CWE-203 / CWE-200
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/05/2019 🔍
01/29/2020 +55 days 🔍
01/30/2020 +1 days 🔍
03/27/2024 +1518 days 🔍

Sourcesinfo

Advisory: RHSA-2020:0681
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-2102 (🔍)
GCVE (CVE): GCVE-0-2020-2102
GCVE (VulDB): GCVE-100-149529
See also: 🔍

Entryinfo

Created: 01/30/2020 08:29
Updated: 03/27/2024 14:25
Changes: 01/30/2020 08:29 (39), 01/30/2020 08:34 (18), 03/27/2024 14:25 (17)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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