Information disclosure in Samba
CVE-2021-44141
All versions of Samba prior to 4.15.5 are vulnerable to a malicious client using a server symlink to determine if a file or directory exists in an area of the server file system not exported under the share definition. SMB1 with unix extensions has to be enabled in order for this attack to succeed.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.011 (64.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Samba
- Fedoraproject Fedora — versions 34, 35
- Red Hat Storage — versions 3.0
- Samba — versions All versions of Samba prior to 4.15.5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.samba.org/samba/security/CVE-2021-44141.html (Mitigation, Vendor Advisory)
- security.gentoo.org/glsa/202309-06 (vendor-advisory)
Frequently asked questions
- What is CVE-2021-44141?
- CVE-2021-44141 is a medium-severity vulnerability in Samba, classified under Information Disclosure. CVSS score: 4.3/10. Published 2022-02-21.
- How severe is CVE-2021-44141?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2021-44141 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.