openfortivpn 1.11.0 tunnel.c Hostname certificate validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.9$0-$5k0.00

Summaryinfo

A vulnerability was found in openfortivpn 1.11.0 and classified as problematic. This vulnerability affects unknown code of the file tunnel.c. The manipulation of the argument Hostname with the input $software_input_value as part of Certificate results in certificate validation. This vulnerability is cataloged as CVE-2020-7043. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in openfortivpn 1.11.0. Affected is an unknown code of the file tunnel.c. The manipulation of the argument hostname with the input value \0 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, and integrity. CVE summarizes:

An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL before 1.0.2. tunnel.c mishandles certificate validation because hostname comparisons do not consider '\0' characters, as demonstrated by a good.example.com\x00evil.example.com attack.

The weakness was shared 02/27/2020. This vulnerability is traded as CVE-2020-7043 since 01/14/2020. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1587.003 by the MITRE ATT&CK project.

Upgrading to version 1.11.0 eliminates this vulnerability.

The entries VDB-150713 and VDB-150712 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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: 9.1
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.1
VulDB Temp Score: 8.7
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: 🔍

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: openfortivpn 1.11.0
Patch: github.com

Timelineinfo

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

Sourcesinfo

Advisory: 6328a070ddaab16faaf008cb9a8a62439c30f2a8
Status: Not defined

CVE: CVE-2020-7043 (🔍)
GCVE (CVE): GCVE-0-2020-7043
GCVE (VulDB): GCVE-100-150714
See also: 🔍

Entryinfo

Created: 02/28/2020 15:10
Updated: 04/07/2024 12:25
Changes: 02/28/2020 15:10 (42), 02/28/2020 15:36 (17), 04/07/2024 12:18 (20), 04/07/2024 12:25 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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