OpenSSH up to 9.2 ssh-add privilege escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in OpenSSH up to 9.2. This affects an unknown part of the component ssh-add. Executing a manipulation can lead to an unknown weakness. This vulnerability appears as CVE-2023-28531. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in OpenSSH up to 9.2 (Connectivity Software) and classified as problematic. This vulnerability affects an unknown function of the component ssh-add. The impact remains unknown. CVE summarizes:

ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints. The earliest affected version is 8.9.

The weakness was presented 03/17/2023. The advisory is available at openwall.com. This vulnerability was named CVE-2023-28531 since 03/17/2023. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 239984 (TencentOS Server 4: openssh (TSSA-2024:0951)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (239984). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
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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Nessus ID: 239984
Nessus Name: TencentOS Server 4: openssh (TSSA-2024:0951)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenSSH 9.3

Timelineinfo

03/17/2023 🔍
03/17/2023 +0 days 🔍
03/17/2023 +0 days 🔍
11/06/2025 +964 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Confirmed

CVE: CVE-2023-28531 (🔍)
GCVE (CVE): GCVE-0-2023-28531
GCVE (VulDB): GCVE-100-223258

Entryinfo

Created: 03/17/2023 06:57
Updated: 11/06/2025 00:19
Changes: 03/17/2023 06:57 (38), 04/11/2023 08:03 (11), 06/17/2025 19:12 (16), 11/06/2025 00:19 (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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