CVE-2020-15688

The HTTP Digest Authentication in the GoAhead web server before 5.1.2 does not completely protect against replay attacks. This allows an unauthenticated remote attacker to bypass authentication via capture-replay if TLS is not used to protect the underlying communication channel.

• CWE-294

• http://packetstormsecurity.com/files/159505/EmbedThis-GoAhead-Web-Server-5.1.1-Digest-Authentication-Capture-Replay-Nonce-Reuse.htmlExploit, Third Party Advisory, VDB Entry
• https://github.com/embedthis/goahead-gpl/issues/3Third Party Advisory
• https://github.com/embedthis/goahead-gpl/issues/3Third Party Advisory
• https://github.com/embedthis/goahead-gpl/issues/3Third Party Advisory
• https://github.com/embedthis/goahead-gpl/issues/3Third Party Advisory
• http://packetstormsecurity.com/files/159505/EmbedThis-GoAhead-Web-Server-5.1.1-Digest-Authentication-Capture-Replay-Nonce-Reuse.htmlExploit, Third Party Advisory, VDB Entry
• https://github.com/embedthis/goahead-gpl/issues/3Third Party Advisory
• https://github.com/embedthis/goahead-gpl/issues/3Third Party Advisory
• https://github.com/embedthis/goahead-gpl/issues/3Third Party Advisory
• https://github.com/embedthis/goahead-gpl/issues/3Third Party Advisory

Published

Jul 23, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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