gsi-openssh-server 7.9p1 on Fedora /etc/gsissh/sshd_config credentials management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in gsi-openssh-server 7.9p1 on Fedora. This affects an unknown part of the file /etc/gsissh/sshd_config. Performing a manipulation results in credentials management. This vulnerability is identified as CVE-2019-7639. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical has been found in gsi-openssh-server 7.9p1 on Fedora (Connectivity Software). This affects some unknown functionality of the file /etc/gsissh/sshd_config. The manipulation with an unknown input leads to a credentials management vulnerability. CWE is classifying the issue as CWE-255. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in gsi-openssh-server 7.9p1 on Fedora 29. If PermitPAMUserChange is set to yes in the /etc/gsissh/sshd_config file, logins succeed with a valid username and an incorrect password, even though a failure entry is recorded in the /var/log/messages file.

The bug was discovered 02/08/2019. The weakness was released 02/08/2019. This vulnerability is uniquely identified as CVE-2019-7639 since 02/08/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1552 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.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

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

NVD Base Score: 8.1
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: Credentials management
CWE: CWE-255
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

02/08/2019 🔍
02/08/2019 +0 days 🔍
02/08/2019 +0 days 🔍
02/08/2019 +0 days 🔍
07/09/2023 +1612 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2019-7639 (🔍)
GCVE (CVE): GCVE-0-2019-7639
GCVE (VulDB): GCVE-100-130671

Entryinfo

Created: 02/08/2019 19:41
Updated: 07/09/2023 08:14
Changes: 02/08/2019 19:41 (54), 05/09/2020 11:23 (1), 07/09/2023 08:14 (3)
Complete: 🔍
Cache ID: 216::103

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