Atlantis up to 0.19.6 Webhook Event Validator timing discrepancy

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Atlantis up to 0.19.6. Affected by this vulnerability is an unknown functionality of the component Webhook Event Validator. Such manipulation leads to timing discrepancy. This vulnerability is traded as CVE-2022-24912. Access to the local network is required for this attack to succeed. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Atlantis up to 0.19.6 and classified as problematic. Affected by this issue is an unknown functionality of the component Webhook Event Validator. The manipulation with an unknown input leads to a timing discrepancy vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality. CVE summarizes:

The package github.com/runatlantis/atlantis/server/controllers/events before 0.19.7 are vulnerable to Timing Attack in the webhook event validator code, which does not use a constant-time comparison function to validate the webhook secret. It can allow an attacker to recover this secret as an attacker and then forge webhook events.

The weakness was shared 07/29/2022 as 2391. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2022-24912 since 02/24/2022. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

Upgrading to version 0.19.7 eliminates this vulnerability. Applying the patch 48870911974adddaa4c99c8089e79b7d787fa820 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

Version

License

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: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (Snyk): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Atlantis 0.19.7
Patch: 48870911974adddaa4c99c8089e79b7d787fa820

Timelineinfo

02/24/2022 🔍
07/29/2022 +154 days 🔍
07/29/2022 +0 days 🔍
07/29/2022 +0 days 🔍

Sourcesinfo

Advisory: 2391
Status: Confirmed

CVE: CVE-2022-24912 (🔍)
GCVE (CVE): GCVE-0-2022-24912
GCVE (VulDB): GCVE-100-205304

Entryinfo

Created: 07/29/2022 15:17
Changes: 07/29/2022 15:17 (52)
Complete: 🔍
Cache ID: 216::103

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