CVE-2022-28321

Published: Sep 19, 2022Updated: May 29, 2025 Sources: CVE List NVD BDU csafCWE-287

9.8CRITICAL

NVD MITRE

Description

The Linux-PAM package before 1.5.2-6.1 for openSUSE Tumbleweed allows authentication bypass for SSH logins. The pam_access.so module doesn't correctly restrict login if a user tries to connect from an IP address that is not resolvable via DNS. In such conditions, a user with denied access to a machine can still get access. NOTE: the relevance of this issue is largely limited to openSUSE Tumbleweed and openSUSE Factory; it does not affect Linux-PAM upstream.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

Open in CVSS calculator →

Weaknesses

CWE-287

Affected Products

linux-pam

oss-project

linux-pamLibrary

Operating Systems / linux-distro

Сообщество свободного программного обеспечения

oss-projectaka fsf

Linux-PAMOn-premLibrary

Operating Systems / unix-bsd

and 1 more affected products View all →

Exploitability

Official Patch Available

Is your org exposed to CVE-2022-28321?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques

Initial Access

View detailed technique mapping

References

http://download.opensuse.org/source/distribution/openSUSE-current/repo/oss/src/

download.opensuse.org

https://bugzilla.suse.com/show_bug.cgi?id=1197654

bugzilla.suse.com

https://www.suse.com/security/cve/CVE-2022-28321.html

suse.com

and 14 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2022-28321 and every CVE in our database. Create a free account — no credit card required.

Create Free Account

Plain-language analysis

Impact assessment and exploitation scenario in plain English

Attack graph visualization

Interactive attack path and kill chain mapping

Exploit details & PoC links

ExploitDB, Metasploit, GitHub PoCs with direct links

Nuclei scanner templates

Ready-to-use vulnerability scanner templates

Full remediation guide

Patch instructions, workarounds, and compliance impact

Interactive AI chat

Ask questions about this vulnerability in natural language

Related vulnerabilities

Semantically similar CVEs and attack patterns

REST API & MCP access

Integrate vulnerability data into your workflows