// For flags

CVE-2022-4254

sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters

A vulnerability was found in SSSD, in the libsss_certmap functionality. PKINIT enables a client to authenticate to the KDC using an X.509 certificate and the corresponding private key, rather than a passphrase or keytab. FreeIPA uses mapping rules to map a certificate presented during a PKINIT authentication request to the corresponding principal. The mapping filter is vulnerable to LDAP filter injection. The search result can be influenced by values in the certificate, which may be attacker controlled. In the most extreme case, an attacker could gain control of the admin account, leading to full domain takeover.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-12-01 CVE Reserved
  • 2023-01-24 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • 2024-09-08 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Fedoraproject
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Sssd
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>= 1.15.3 < 2.3.1
Search vendor "Fedoraproject" for product "Sssd" and version " >= 1.15.3 < 2.3.1"
-
Affected
Redhat
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Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
8.0
Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"
-
Affected
Redhat
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Enterprise Linux Desktop
Search vendor "Redhat" for product "Enterprise Linux Desktop"
7.0
Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0"
-
Affected
Redhat
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Enterprise Linux For Ibm Z Systems
Search vendor "Redhat" for product "Enterprise Linux For Ibm Z Systems"
7.0
Search vendor "Redhat" for product "Enterprise Linux For Ibm Z Systems" and version "7.0"
-
Affected
Redhat
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Enterprise Linux For Power Big Endian
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7.0
Search vendor "Redhat" for product "Enterprise Linux For Power Big Endian" and version "7.0"
-
Affected
Redhat
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Enterprise Linux For Power Little Endian
Search vendor "Redhat" for product "Enterprise Linux For Power Little Endian"
7.0
Search vendor "Redhat" for product "Enterprise Linux For Power Little Endian" and version "7.0"
-
Affected
Redhat
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Enterprise Linux For Scientific Computing
Search vendor "Redhat" for product "Enterprise Linux For Scientific Computing"
7.0
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-
Affected
Redhat
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Enterprise Linux Server
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7.0
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-
Affected
Redhat
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Enterprise Linux Server Aus
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8.2
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-
Affected
Redhat
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Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions
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8.1
Search vendor "Redhat" for product "Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions" and version "8.1"
-
Affected
Redhat
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Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions
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8.2
Search vendor "Redhat" for product "Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions" and version "8.2"
-
Affected
Redhat
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Enterprise Linux Server Tus
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8.2
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-
Affected
Redhat
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Enterprise Linux Server Update Services For Sap Solutions
Search vendor "Redhat" for product "Enterprise Linux Server Update Services For Sap Solutions"
8.1
Search vendor "Redhat" for product "Enterprise Linux Server Update Services For Sap Solutions" and version "8.1"
-
Affected
Redhat
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Enterprise Linux Workstation
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7.0
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-
Affected