Critical severity · published Mar 4, 2021
CVE-2021-23127
An issue was discovered in Joomla! 3.2.0 through 3.9.24
9.1
CVSS
1.4%
EPSS
No
On KEV
Description
An issue was discovered in Joomla! 3.2.0 through 3.9.24. Usage of an insufficient length for the 2FA secret accoring to RFC 4226 of 10 bytes vs 20 bytes.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JO
Joomla · Joomla
3.2.0 before 3.9.25 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-23127
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-23127
Vendor Advisory
https://developer.joomla.org/security-centre/841-20210301-core-insecure-randomness-within-2fa-secret-generation.html
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