Hickory DNS through 0.26.0-alpha.1 DNSSEC NSEC Validation Bypass for Empty Non-Terminals
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| hickory-dns | hickory-dns | unaffected |
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| hickory-dns | hickory-dns | unaffected |
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No data.
No data.
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| Hickory-dns | Hickory-dns |
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| Hickory-dns | Hickory-dns |
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No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.120% probability within 30 days)
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Hickory-dns
Hickory-dns hickory-dns |
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| Vendors & Products |
Hickory-dns
Hickory-dns hickory-dns |
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| Description | Hickory DNS hickory-proto through 0.26.0-alpha.1 and hickory-net 0.26.0-beta.1 before 0.26.2 contain an NSEC validation flaw that returns a secure proof for NXDOMAIN responses when the covering NSEC's Next Domain Name is a strict descendant of the query name, which actually proves the name exists as an empty non-terminal. On-path attackers can flip the unsigned rcode of a genuine signed NODATA response from NOERROR to NXDOMAIN, causing validators to accept forged nonexistence of the name. | |
| Title | Hickory DNS through 0.26.0-alpha.1 DNSSEC NSEC Validation Bypass for Empty Non-Terminals | |
| Weaknesses | CWE-345 | |
| References |
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| Metrics |
cvssV3_1
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