CSRF in Apache Myfaces
CVE-2021-26296
In the default configuration, Apache MyFaces Core versions 2.2.0 to 2.2.13, 2.3.0 to 2.3.7, 2.3-next-M1 to 2.3-next-M4, and 3.0.0-RC1 use cryptographically weak implicit and explicit cross-site request forgery (CSRF) tokens. Due to that limitation, it is possible (although difficult) for an attacker to calculate a future CSRF token value and to use that value to trick a user into executing unwanted actions on an application.
Vulnerability class: CSRF (Cross-Site Request Forgery)
EPSS: 0.030 (86.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Apache Myfaces — versions 2.3, 3.0.0
- Apache Software Foundation Myfaces Core — versions Apache MyFaces Core 2.2, Apache MyFaces Core 2.3, Apache MyFaces Core 2.3-next
- Netapp Oncommand_insight
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (Mailing List, x_refsource_MISC, Vendor Advisory)
- security@apache.org (mailing-list, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
- security@apache.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-26296?
- CVE-2021-26296 is a high-severity vulnerability in Apache Myfaces, classified under Cross-Site Request Forgery (CSRF). CVSS score: 7.5/10. Published 2021-02-19.
- How severe is CVE-2021-26296?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-26296 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.