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Vulnerability Details : CVE-2009-3602

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.
Publish Date : 2009-10-13 Last Update Date : 2017-08-17
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 310

- Related OVAL Definitions

Title Definition Id Class Family
CVE-2009-3602 unix
DSA-1963 unbound -- cryptographic implementation error oval:org.mitre.oval:def:7571 unix
DSA-1963-1 unbound -- cryptographic implementation error oval:org.mitre.oval:def:13307 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2009-3602

# Product Type Vendor Product Version Update Edition Language
1 Application Nlnetlabs Unbound * * * * Version Details Vulnerabilities
2 Application Nlnetlabs Unbound 0.0 * * * Version Details Vulnerabilities
3 Application Nlnetlabs Unbound 0.1 * * * Version Details Vulnerabilities
4 Application Nlnetlabs Unbound 0.2 * * * Version Details Vulnerabilities
5 Application Nlnetlabs Unbound 0.3 * * * Version Details Vulnerabilities
6 Application Nlnetlabs Unbound 0.4 * * * Version Details Vulnerabilities
7 Application Nlnetlabs Unbound 0.5 * * * Version Details Vulnerabilities
8 Application Nlnetlabs Unbound 0.6 * * * Version Details Vulnerabilities
9 Application Nlnetlabs Unbound 0.7 * * * Version Details Vulnerabilities
10 Application Nlnetlabs Unbound 0.7.1 * * * Version Details Vulnerabilities
11 Application Nlnetlabs Unbound 0.7.2 * * * Version Details Vulnerabilities
12 Application Nlnetlabs Unbound 0.8 * * * Version Details Vulnerabilities
13 Application Nlnetlabs Unbound 0.09 * * * Version Details Vulnerabilities
14 Application Nlnetlabs Unbound 0.10 * * * Version Details Vulnerabilities
15 Application Nlnetlabs Unbound 0.11 * * * Version Details Vulnerabilities
16 Application Nlnetlabs Unbound 1.0.0 * * * Version Details Vulnerabilities
17 Application Nlnetlabs Unbound 1.0.1 * * * Version Details Vulnerabilities
18 Application Nlnetlabs Unbound 1.0.2 * * * Version Details Vulnerabilities
19 Application Nlnetlabs Unbound 1.1.0 * * * Version Details Vulnerabilities
20 Application Nlnetlabs Unbound 1.1.1 * * * Version Details Vulnerabilities
21 Application Nlnetlabs Unbound 1.2.0 * * * Version Details Vulnerabilities
22 Application Nlnetlabs Unbound 1.2.1 * * * Version Details Vulnerabilities
23 Application Nlnetlabs Unbound 1.3.0 * * * Version Details Vulnerabilities
24 Application Nlnetlabs Unbound 1.3.1 * * * Version Details Vulnerabilities
25 Application Nlnetlabs Unbound 1.3.2 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Nlnetlabs Unbound 25

- References For CVE-2009-3602
MLIST [Unbound-users] 20091007 Release of unbound 1.3.4
VUPEN ADV-2009-2875
MLIST [oss-security] 20091009 CVE request: Unbound
MLIST [oss-security] 20091009 Re: CVE request: Unbound
OSVDB 58836
XF unbound-nsec3-security-bypass(53729)

- Metasploit Modules Related To CVE-2009-3602

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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