CSRF in Altn Mdaemon
CVE-2021-27181
An issue was discovered in MDaemon before 20.0.4. Remote Administration allows an attacker to perform a fixation of the anti-CSRF token. In order to exploit this issue, the user has to click on a malicious URL provided by the attacker and successfully authenticate into the application. Having the value of the anti-CSRF token, the attacker may trick the user into visiting his malicious page and performing any request with the privileges of attacked user.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (49.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.altn.com/Support/SecurityUpdate/MD011221_MDaemon_EN/ (Release Notes, Vendor Advisory)
- github.com/chudyPB/MDaemon-Advisories (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27181?
- CVE-2021-27181 is a high-severity vulnerability in Altn Mdaemon, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-04-14.
- How severe is CVE-2021-27181?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-27181 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.