openfortivpn 1.11.0 tunnel.c X509_check_host Return Value certificate validation

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in openfortivpn 1.11.0. Affected by this issue is the function X509_check_host of the file tunnel.c. Executing a manipulation as part of Return Value can lead to certificate validation. This vulnerability is tracked as CVE-2020-7041. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in openfortivpn 1.11.0. It has been declared as critical. This vulnerability affects the function X509_check_host of the file tunnel.c. The manipulation as part of a Return Value leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL 1.0.2 or later. tunnel.c mishandles certificate validation because an X509_check_host negative error code is interpreted as a successful return value.

The weakness was disclosed 02/27/2020. This vulnerability was named CVE-2020-7041 since 01/14/2020. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1587.003.

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

The entries VDB-150713 and VDB-150714 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • OpenSSL 1.0.2

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
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: 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: 🔍

Patch: github.com

Timelineinfo

01/14/2020 🔍
02/27/2020 +44 days 🔍
02/28/2020 +1 days 🔍
04/07/2024 +1500 days 🔍

Sourcesinfo

Advisory: 60660e00b80bad0fadcf39aee86f6f8756c94f91
Status: Not defined

CVE: CVE-2020-7041 (🔍)
GCVE (CVE): GCVE-0-2020-7041
GCVE (VulDB): GCVE-100-150712
See also: 🔍

Entryinfo

Created: 02/28/2020 15:33
Updated: 04/07/2024 11:55
Changes: 02/28/2020 15:33 (40), 02/28/2020 15:38 (17), 04/07/2024 11:48 (19), 04/07/2024 11:55 (1)
Complete: 🔍
Cache ID: 216::103

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Discussion

 niuyonggang_huawei (+0)
6 years ago
OpenSSL 1.0.2 is not affected by this vulnerability. So the affected can't related openssl.

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