ProFTPD up to 1.3.5 CRL tls_verify_crl certificate validation

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in ProFTPD up to 1.3.5. It has been classified as critical. The affected element is the function tls_verify_crl of the component CRL Handler. Performing a manipulation results in certificate validation. This vulnerability is identified as CVE-2019-19271. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in ProFTPD up to 1.3.5 (File Transfer Software). This affects the function tls_verify_crl of the component CRL 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. The summary by CVE is:

An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable, used when checking a client certificate against CRL entries (installed by a system administrator), can cause some CRL entries to be ignored, and can allow clients whose certificates have been revoked to proceed with a connection to the server.

The weakness was released 11/26/2019. This vulnerability is uniquely identified as CVE-2019-19271 since 11/26/2019. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

Upgrading to version 1.3.6 eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-146362 and VDB-146360. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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: 🔍
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: ProFTPD 1.3.6

Timelineinfo

11/26/2019 🔍
11/26/2019 +0 days 🔍
11/26/2019 +0 days 🔍
02/28/2024 +1555 days 🔍

Sourcesinfo

Product: github.com

Advisory: 860
Status: Not defined

CVE: CVE-2019-19271 (🔍)
GCVE (CVE): GCVE-0-2019-19271
GCVE (VulDB): GCVE-100-146361
See also: 🔍

Entryinfo

Created: 11/26/2019 14:07
Updated: 02/28/2024 09:32
Changes: 11/26/2019 14:07 (39), 11/26/2019 14:12 (18), 02/28/2024 09:32 (5)
Complete: 🔍
Cache ID: 216::103

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

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