Critical severity · published Jul 18, 2022
CVE-2021-40874
An issue was discovered in LemonLDAP::NG (aka lemonldap-ng) 2.0.13
9.8
CVSS
1.2%
EPSS
No
On KEV
Description
An issue was discovered in LemonLDAP::NG (aka lemonldap-ng) 2.0.13. When using the RESTServer plug-in to operate a REST password validation service (for another LemonLDAP::NG instance, for example) and using the Kerberos authentication method combined with another method with the Combination authentication plug-in, any password will be recognized as valid for an existing user.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0 · source: NVD
LE
Lemonldap::ng · Lemonldap-ng
2.0.13 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-40874
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-40874
Exploit
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2612
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