CVE-2009-3767

OpenLDAP: Doesn't properly handle NULL character in subject Common Name

Severity Score

4.3

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

libraries/libldap/tls_o.c in OpenLDAP 2.2 and 2.4, and possibly other versions, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

libraries/libldap/tls_o.c en OpenLDAP, cuando se usa OpenSSL, no maneja de forma adecuada el caracter '\0' en un nombre de dominio, dentro del campo sujeto del Common Name (CN) en los certificados X.509, lo
que permite a atacantes man-in-the-middle, espíar servidores SSL de su elección a través de certificados manipulados concedidos por Autoridades Certificadoras, esta relacionado con CVE-2009-2408.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2009-10-23 CVE Reserved
2009-10-23 CVE Published
2023-03-07 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-295: Improper Certificate Validation

CAPEC

References (18)

URL	Tag	Source
http://marc.info/?l=oss-security&m=125198917018936&w=2	Mailing List
http://marc.info/?l=oss-security&m=125369675820512&w=2	Mailing List
http://secunia.com/advisories/38769	Third Party Advisory
http://secunia.com/advisories/40677	Third Party Advisory
http://support.apple.com/kb/HT3937	Broken Link
http://www.vupen.com/english/advisories/2009/3056	Third Party Advisory
http://www.vupen.com/english/advisories/2010/1858	Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11178	Signature
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7274	Signature

URL	Date	SRC

URL	Date	SRC
http://www.openldap.org/devel/cvsweb.cgi/libraries/libldap/tls_o.c.diff?r1=1.8&r2=1.11&f=h	2020-10-14

URL	Date	SRC
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html	2020-10-14
http://lists.fedoraproject.org/pipermail/package-announce/2010-March/036138.html	2020-10-14
http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html	2020-10-14
http://security.gentoo.org/glsa/glsa-201406-36.xml	2020-10-14
http://www.redhat.com/support/errata/RHSA-2010-0543.html	2020-10-14
http://www.redhat.com/support/errata/RHSA-2011-0896.html	2020-10-14
https://access.redhat.com/security/cve/CVE-2009-3767	2011-06-22
https://bugzilla.redhat.com/show_bug.cgi?id=530715	2011-06-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Openldap Search vendor "Openldap"	Openldap Search vendor "Openldap" for product "Openldap"	< 2.4.18 Search vendor "Openldap" for product "Openldap" and version " < 2.4.18"	-	Affected	in	Openssl Search vendor "Openssl"	Openssl Search vendor "Openssl" for product "Openssl"	*	-	Safe
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				< 10.6.2 Search vendor "Apple" for product "Mac Os X" and version " < 10.6.2"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				11 Search vendor "Fedoraproject" for product "Fedora" and version "11"		-		Affected