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veracodeVeracode Vulnerability DatabaseVERACODE:23726
HistoryApr 10, 2020 - 12:34 a.m.

DSA Certificate Validation Bypass

2020-04-1000:34:40
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
7

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

bind is vulnerable to DSA certificate validation bypass. The vulnerability exists as a flaw was discovered in the way BIND checked the return value of the OpenSSL DSA_do_verify function. On systems using DNSSEC, a malicious zone could present a malformed DSA certificate and bypass proper certificate validation, allowing spoofing attacks.

References

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P