Strix
26.1K

CVE-2009-3602

UnknownEPSS 2.98%

Last modified

CVE-2009-3602 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.98% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
2.98%

85.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
NlnetlabsUnbound<= 1.3.3
NlnetlabsUnbound0.0
NlnetlabsUnbound0.1
NlnetlabsUnbound0.2
NlnetlabsUnbound0.3
NlnetlabsUnbound0.4
NlnetlabsUnbound0.5
NlnetlabsUnbound0.6
NlnetlabsUnbound0.7
NlnetlabsUnbound0.7.1
NlnetlabsUnbound0.7.2
NlnetlabsUnbound0.8
NlnetlabsUnbound0.09
NlnetlabsUnbound0.10
NlnetlabsUnbound0.11
NlnetlabsUnbound1.0.0
NlnetlabsUnbound1.0.1
NlnetlabsUnbound1.0.2
NlnetlabsUnbound1.1.0
NlnetlabsUnbound1.1.1
NlnetlabsUnbound1.2.0
NlnetlabsUnbound1.2.1
NlnetlabsUnbound1.3.0
NlnetlabsUnbound1.3.1
NlnetlabsUnbound1.3.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2009-3602?
Severity scoring for CVE-2009-3602 is pending analysis. The EPSS model estimates a 2.98% probability of exploitation in the next 30 days.
How do I fix CVE-2009-3602?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-3602?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST