Botan up to 2.19.2 OCSP Response certificate validation

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

A vulnerability was found in Botan up to 2.19.2 and classified as critical. Affected by this issue is some unknown processing of the component OCSP Response Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The software does not validate, or incorrectly validates, a certificate. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In Botan before 2.19.3, it is possible to forge OCSP responses due to a certificate verification error. This issue was introduced in Botan 1.11.34 (November 2016).

The weakness was published 11/27/2022 as GHSA-4v9w-qvcq-6q7w. The advisory is available at github.com. This vulnerability is handled as CVE-2022-43705 since 10/24/2022. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1587.003 by the MITRE ATT&CK project.

Upgrading to version 2.19.3 eliminates this vulnerability. The upgrade is hosted for download at github.com.

Productinfo

Name

License

  • open-source

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
ATT&CK: T1587.003

Local: No
Remote: Partially

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: Botan 2.19.3

Timelineinfo

10/24/2022 CVE reserved
11/27/2022 +34 days Advisory disclosed
11/27/2022 +0 days VulDB entry created
12/23/2022 +26 days VulDB last update

Sourcesinfo

Advisory: GHSA-4v9w-qvcq-6q7w
Status: Confirmed

CVE: CVE-2022-43705 (🔒)

Entryinfo

Created: 11/27/2022 11:13 AM
Updated: 12/23/2022 03:59 PM
Changes: 11/27/2022 11:13 AM (41), 12/23/2022 03:59 PM (11)
Complete: 🔍

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