CVE-2021-41615 — CRITICAL (9.8)

Vulnerability Description

websda.c in GoAhead WebServer 2.1.8 has insufficient nonce entropy because the nonce calculation relies on the hardcoded onceuponatimeinparadise value, which does not follow the secret-data guideline for HTTP Digest Access Authentication in RFC 7616 section 3.3 (or RFC 2617 section 3.2.1). NOTE: 2.1.8 is a version from 2003; however, the affected websda.c code appears in multiple derivative works that may be used in 2021. Recent GoAhead software is unaffected.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Embedthis	Goahead	2.1.8

Related Weaknesses (CWE)

CWE-331

References

https://devel.rtems.org/browser/rtems/cpukit/httpd/websda.c?rev=c1427d2758079f0eMailing ListThird Party Advisory
https://github.com/trenta3/goahead-versions/blob/master/2.1.8/230165webs218.tar.ProductThird Party Advisory
https://devel.rtems.org/browser/rtems/cpukit/httpd/websda.c?rev=c1427d2758079f0eMailing ListThird Party Advisory
https://github.com/trenta3/goahead-versions/blob/master/2.1.8/230165webs218.tar.ProductThird Party Advisory

FAQ

What is CVE-2021-41615?

CVE-2021-41615 is a vulnerability with a CVSS score of 9.8 (CRITICAL). websda.c in GoAhead WebServer 2.1.8 has insufficient nonce entropy because the nonce calculation relies on the hardcoded onceuponatimeinparadise value, which does not follow the secret-data guideline ...

How severe is CVE-2021-41615?

CVE-2021-41615 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-41615?

Check the references section above for vendor advisories and patch information. Affected products include: Embedthis Goahead.