Vulnerability Name:

CVE-2009-3639 (CCN-53936)

Assigned:2009-10-20
Published:2009-10-20
Updated:2017-08-17
Summary:The mod_tls module in ProFTPD before 1.3.2b, and 1.3.3 before 1.3.3rc2, when the dNSNameRequired TLS option is enabled, does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 client certificate, which allows remote attackers to bypass intended client-hostname restrictions via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
CVSS v3 Severity:3.7 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:5.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:P)
4.3 Medium (Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
2.6 Low (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:N/I:P/A:N)
1.9 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:H/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-310
Vulnerability Consequences:Bypass Security
References:Source: CCN
Type: Proftp.org Bugzilla Bug 3275
Improper SSL/TLS certificate subjectAltName verification

Source: CONFIRM
Type: UNKNOWN
http://bugs.proftpd.org/show_bug.cgi?id=3275

Source: MITRE
Type: CNA
CVE-2009-3639

Source: MLIST
Type: UNKNOWN
[oss-security] 20091023 proftpd - mod_tls - Improper SSL/TLS certificate subjectAltName verification

Source: MLIST
Type: UNKNOWN
[oss-security] 20091023 Re: proftpd - mod_tls - Improper SSL/TLS certificate subjectAltName verification

Source: CCN
Type: SA36093
Network Security Services Multiple Vulnerabilities

Source: CCN
Type: SA37131
ProFTPD SSL Certificate NULL Character Processing Security Issue

Source: SECUNIA
Type: Vendor Advisory
37131

Source: SECUNIA
Type: UNKNOWN
37219

Source: DEBIAN
Type: UNKNOWN
DSA-1925

Source: DEBIAN
Type: DSA-1925
proftpd-dfsg -- insufficient input validation

Source: MANDRIVA
Type: UNKNOWN
MDVSA-2009:288

Source: CCN
Type: ProFTPD Web site
ProFTPD - Highly configurable GPL-licensed FTP server software

Source: BID
Type: Patch
36804

Source: CCN
Type: BID-36804
ProFTPD mod_tls Module NULL Character CA SSL Certificate Validation Security Bypass Vulnerability

Source: CONFIRM
Type: Patch
https://bugzilla.redhat.com/show_bug.cgi?id=530719

Source: XF
Type: UNKNOWN
proftpd-modtls-security-bypass(53936)

Source: XF
Type: UNKNOWN
proftpd-modtls-security-bypass(53936)

Source: FEDORA
Type: UNKNOWN
FEDORA-2009-11649

Source: FEDORA
Type: UNKNOWN
FEDORA-2009-11666

Vulnerable Configuration:Configuration 1:
  • cpe:/a:proftpd:proftpd:1.3.1:*:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.2:*:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:*:a:*:*:*:*:*:* (Version <= 1.3.2)
  • OR cpe:/a:proftpd:proftpd:1.3.2:rc1:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.2:rc2:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.2:rc4:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.3:rc1:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:proftpd:proftpd:1.2.0:*:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.1:*:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.2:*:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.2:rc2:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.2:rc1:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.2:rc4:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.2:a:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.3:rc1:*:*:*:*:*:*
  • AND
  • cpe:/o:mandrakesoft:mandrake_linux_corporate_server:3.0:*:*:*:*:*:*:*
  • OR cpe:/o:mandrakesoft:mandrake_linux_corporate_server:4.0:*:*:*:*:*:*:*
  • OR cpe:/o:mandrakesoft:mandrake_linux_corporate_server:4.0::x86_64:*:*:*:*:*
  • OR cpe:/o:mandrakesoft:mandrake_linux_corporate_server:3.0::x86_64:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:4.0:*:*:*:*:*:*:*
  • OR cpe:/o:mandriva:linux:2009.0:*:*:*:*:*:*:*
  • OR cpe:/o:mandriva:linux:2009.0:-:x86_64:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:5.0:*:*:*:*:*:*:*
  • OR cpe:/o:mandriva:linux:2009.1:*:*:*:*:*:*:*
  • OR cpe:/o:mandriva:linux:2009.1:*:*:*:x86_64:*:*:*
  • OR cpe:/o:mandriva:enterprise_server:5:*:*:*:*:*:*:*
  • OR cpe:/o:mandriva:enterprise_server:5:*:*:*:x86_64:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:113175
    P
    		proftpd-1.3.5b-2.5 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:106597
    P
    		proftpd-1.3.5b-2.5 on GA media (Moderate)
    2021-10-01
    oval:org.mitre.oval:def:7684
    P
    		DSA-1925 proftpd-dfsg -- insufficient input validation
    2014-06-23
    oval:org.mitre.oval:def:13366
    P
    		DSA-1925-1 proftpd-dfsg -- insufficient input validation
    2014-06-23
    oval:org.debian:def:1925
    V
    		insufficient input validation
    2009-10-31
    BACK
    proftpd proftpd 1.3.1
    proftpd proftpd 1.3.2
    proftpd proftpd * a
    proftpd proftpd 1.3.2 rc1
    proftpd proftpd 1.3.2 rc2
    proftpd proftpd 1.3.2 rc4
    proftpd proftpd 1.3.3 rc1
    proftpd proftpd 1.2.0
    proftpd proftpd 1.3.1
    proftpd proftpd 1.3.2
    proftpd proftpd 1.3.2 rc2
    proftpd proftpd 1.3.2 rc1
    proftpd proftpd 1.3.2 rc4
    proftpd proftpd 1.3.2 a
    proftpd proftpd 1.3.3 rc1
    mandrakesoft mandrake linux corporate server 3.0
    mandrakesoft mandrake linux corporate server 4.0
    mandrakesoft mandrake linux corporate server 4.0
    mandrakesoft mandrake linux corporate server 3.0
    debian debian linux 4.0
    mandriva linux 2009.0
    mandriva linux 2009.0 -
    debian debian linux 5.0
    mandriva linux 2009.1
    mandriva linux 2009.1
    mandriva enterprise server 5
    mandriva enterprise server 5