Vulnerability Name:

CVE-2009-3602 (CCN-53729)

Assigned:2009-10-07
Published:2009-10-07
Updated:2017-08-17
Summary:Unbound before 1.3.4 does not properly verify signatures for NSEC3 records, which allows remote attackers to cause secure delegations to be downgraded via DNS spoofing or other DNS-related attacks in conjunction with crafted delegation responses.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
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:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
5.5 Medium (Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-310
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2009-3602

Source: OSVDB
Type: UNKNOWN
58836

Source: CCN
Type: SA36996
Unbound NSEC3 Signature Validation Bypass Security Issue

Source: SECUNIA
Type: Vendor Advisory
36996

Source: SECUNIA
Type: UNKNOWN
37913

Source: CCN
Type: Unbound-users Web Site
Release of unbound 1.3.4

Source: MLIST
Type: Vendor Advisory
[Unbound-users] 20091007 Release of unbound 1.3.4

Source: DEBIAN
Type: UNKNOWN
DSA-1963

Source: DEBIAN
Type: DSA-1963
unbound -- cryptographic implementation error

Source: MLIST
Type: UNKNOWN
[oss-security] 20091009 CVE request: Unbound

Source: MLIST
Type: UNKNOWN
[oss-security] 20091009 Re: CVE request: Unbound

Source: CCN
Type: OSVDB ID: 58836
Unbound NSEC3 Record Signature Check Validation Bypass

Source: CCN
Type: BID-37459
Unbound DNS Server NSEC3 Signature Verification DNS Spoofing Vulnerability

Source: CCN
Type: Unbound Web site
Unbound

Source: VUPEN
Type: Vendor Advisory
ADV-2009-2875

Source: XF
Type: UNKNOWN
unbound-nsec3-security-bypass(53729)

Source: XF
Type: UNKNOWN
unbound-nsec3-security-bypass(53729)

Source: SUSE
Type: SUSE-SR:2010:005
SUSE Security Summary Report

Vulnerable Configuration:Configuration 1:
  • cpe:/a:nlnetlabs:unbound:0.0:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:0.1:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:0.2:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:0.3:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:0.4:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:0.5:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:0.6:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:0.7:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:0.7.1:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:0.7.2:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:0.8:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:0.09:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:0.10:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:0.11:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:1.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:1.0.1:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:1.0.2:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:1.1.0:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:1.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:1.2.0:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:1.2.1:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:1.3.0:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:1.3.1:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:1.3.2:*:*:*:*:*:*:*
  • OR cpe:/a:nlnetlabs:unbound:*:*:*:*:*:*:*:* (Version <= 1.3.3)

    • Configuration CCN 1:
  • cpe:/a:unbound:unbound:1.3.3:*:*:*:*:*:*:*
  • OR cpe:/a:unbound:unbound:1.3.2:*:*:*:*:*:*:*
  • OR cpe:/a:unbound:unbound:1.3.1:*:*:*:*:*:*:*
  • OR cpe:/a:unbound:unbound:1.3.0:*:*:*:*:*:*:*
  • AND
  • cpe:/o:debian:debian_linux:5.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20093602
    V
    		CVE-2009-3602
    2015-11-16
    oval:org.mitre.oval:def:7571
    P
    		DSA-1963 unbound -- cryptographic implementation error
    2014-06-23
    oval:org.mitre.oval:def:13307
    P
    		DSA-1963-1 unbound -- cryptographic implementation error
    2014-06-23
    oval:org.debian:def:1963
    V
    		cryptographic implementation error
    2009-12-23
    BACK
    nlnetlabs unbound 0.0
    nlnetlabs unbound 0.1
    nlnetlabs unbound 0.2
    nlnetlabs unbound 0.3
    nlnetlabs unbound 0.4
    nlnetlabs unbound 0.5
    nlnetlabs unbound 0.6
    nlnetlabs unbound 0.7
    nlnetlabs unbound 0.7.1
    nlnetlabs unbound 0.7.2
    nlnetlabs unbound 0.8
    nlnetlabs unbound 0.09
    nlnetlabs unbound 0.10
    nlnetlabs unbound 0.11
    nlnetlabs unbound 1.0.0
    nlnetlabs unbound 1.0.1
    nlnetlabs unbound 1.0.2
    nlnetlabs unbound 1.1.0
    nlnetlabs unbound 1.1.1
    nlnetlabs unbound 1.2.0
    nlnetlabs unbound 1.2.1
    nlnetlabs unbound 1.3.0
    nlnetlabs unbound 1.3.1
    nlnetlabs unbound 1.3.2
    nlnetlabs unbound *
    unbound unbound 1.3.3
    unbound unbound 1.3.2
    unbound unbound 1.3.1
    unbound unbound 1.3.0
    debian debian linux 5.0