CVE-2021-4034
Red Hat Polkit Out-of-Bounds Read and Write Vulnerability
MITRE ATT&CK techniques
How this vulnerability maps to adversary behaviour, from the Center for Threat-Informed Defense's public CVE→ATT&CK mappings. Use it to check whether your detections already cover the technique.
| Technique | Name | Relationship |
|---|---|---|
| T1068 | Exploitation for Privilege Escalation | exploitation technique |
Summary
The Red Hat polkit pkexec utility contains an out-of-bounds read and write vulnerability that allows for privilege escalation with administrative rights.
Affected software
Vendor: Red Hat · Product: Polkit
Weakness types (CWE):
What to do
This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.
Related vulnerabilities in Red Hat
| CVE | Name | EPSS | Exploited |
|---|---|---|---|
| CVE-2017-12149 | Red Hat JBoss Application Server Remote Code Execution Vulnerability | 90.7% | Yes |
| CVE-2010-1871 | Red Hat Linux JBoss Seam 2 Remote Code Execution Vulnerability | 83.4% | Yes |
| CVE-2010-0738 | Red Hat JBoss Authentication Bypass Vulnerability | 79.4% | Yes |
| CVE-2018-14667 | Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability | 74.2% | Yes |
| CVE-2010-1428 | Red Hat JBoss Information Disclosure Vulnerability | 62.3% | Yes |
| CVE-2021-3560 | Red Hat Polkit Incorrect Authorization Vulnerability | 22.2% | Yes |
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