CVE-2021-23177
HIGHDescription
An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL of a file on the system and gain more privileges.
How to fix
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploit Intelligence
Low risk: more likely to be exploited than 29% of all known CVEs.
References
Related Vulnerabilities
Other CWE-59 (Link Following) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2022-30333 | High | 7.5 | 99% | KEV + Ransom | Fix |
| CVE-2021-21300 | High | 8.0 | 89% | - | Fix |
| CVE-2021-32610 | High | 7.1 | 73% | - | Fix |
| CVE-2020-36193 | High | 7.5 | 71% | KEV | Fix |
| CVE-2023-40028 | Medium | 4.9 | 58% | - | Fix |
| CVE-2020-0787 | High | 7.8 | 43% | KEV + Ransom | - |
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Markdown
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.