cURL/libcURL 8.5.0/8.6.0 TLS Connection certificate validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in cURL and libcURL 8.5.0/8.6.0. Affected by this issue is some unknown functionality of the component TLS Connection Handler. Performing a manipulation results in certificate validation. This vulnerability is identified as CVE-2024-2466. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in cURL and libcURL 8.5.0/8.6.0. It has been classified as critical. This affects an unknown code of the component TLS Connection Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

libcurl did not check the server certificate of TLS connections done to a host specified as an IP address, when built to use mbedTLS. libcurl would wrongly avoid using the set hostname function when the specified hostname was given as an IP address, therefore completely skipping the certificate check. This affects all uses of TLS protocols (HTTPS, FTPS, IMAPS, POPS3, SMTPS, etc).

The weakness was released by Frank Yueh. It is possible to read the advisory at curl.se. This vulnerability is uniquely identified as CVE-2024-2466 since 03/14/2024. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

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

CNA Base Score: 6.5
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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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
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

03/14/2024 🔍
03/27/2024 +13 days 🔍
03/27/2024 +0 days 🔍
08/23/2024 +149 days 🔍

Sourcesinfo

Advisory: curl.se
Researcher: Frank Yueh
Status: Confirmed

CVE: CVE-2024-2466 (🔍)
GCVE (CVE): GCVE-0-2024-2466
GCVE (VulDB): GCVE-100-258171

Entryinfo

Created: 03/27/2024 10:01
Updated: 08/23/2024 22:32
Changes: 03/27/2024 10:01 (53), 07/30/2024 01:02 (1), 08/23/2024 22:32 (12)
Complete: 🔍
Cache ID: 216::103

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