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CVE-2005-0039

UnknownEPSS 4.08%

Last modified

CVE-2005-0039 is a vulnerability of currently unknown severity. Certain configurations of IPsec, when using Encapsulating Security Payload (ESP) in tunnel mode, integrity protection at a higher layer, or Authentication Header (AH), allow remote attackers to decrypt IPSec communications by modifying the outer packet in ways that cause plaintext data from the inner packet to be returned in ICMP messages, as demonstrated using bit-flipping attacks and (1) Destination Address Rewriting, (2) a modified header length that causes portions of the packet to be interpreted as IP Options, or (3) a modified protocol field and source address.. EPSS estimates a 4.08% chance of exploitation in the next 30 days.

Description

Certain configurations of IPsec, when using Encapsulating Security Payload (ESP) in tunnel mode, integrity protection at a higher layer, or Authentication Header (AH), allow remote attackers to decrypt IPSec communications by modifying the outer packet in ways that cause plaintext data from the inner packet to be returned in ICMP messages, as demonstrated using bit-flipping attacks and (1) Destination Address Rewriting, (2) a modified header length that causes portions of the packet to be interpreted as IP Options, or (3) a modified protocol field and source address.

Metrics

EPSS Probability
4.08%

89.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
NisscIpsec1.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2005-0039?
Certain configurations of IPsec, when using Encapsulating Security Payload (ESP) in tunnel mode, integrity protection at a higher layer, or Authentication Header (AH), allow remote attackers to decrypt IPSec communications by modifying the outer packet in ways that cause plaintext data from the inner packet to be returned in ICMP messages, as demonstrated using bit-flipping attacks and (1) Destination Address Rewriting, (2) a modified header length that causes portions of the packet to be interpreted as IP Options, or (3) a modified protocol field and source address.
How severe is CVE-2005-0039?
Severity scoring for CVE-2005-0039 is pending analysis. The EPSS model estimates a 4.08% probability of exploitation in the next 30 days.
How do I fix CVE-2005-0039?
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.

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Source: NVD / NIST