CVE-2021-41615
GoAhead WebServer Weak Authentication Nonce Entropy
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.
INFO
Published Date :
Aug. 8, 2022, 7:15 p.m.
Last Modified :
Aug. 12, 2022, 3:02 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-41615.
| URL | Resource |
|---|---|
| https://devel.rtems.org/browser/rtems/cpukit/httpd/websda.c?rev=c1427d2758079f0e9dd6a8de1662d78e0d6bc4ca | Mailing List Third Party Advisory |
| https://github.com/trenta3/goahead-versions/blob/master/2.1.8/230165webs218.tar.gz?raw=true | Product Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-41615 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-41615 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Aug. 12, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://devel.rtems.org/browser/rtems/cpukit/httpd/websda.c?rev=c1427d2758079f0e9dd6a8de1662d78e0d6bc4ca No Types Assigned https://devel.rtems.org/browser/rtems/cpukit/httpd/websda.c?rev=c1427d2758079f0e9dd6a8de1662d78e0d6bc4ca Mailing List, Third Party Advisory Changed Reference Type https://github.com/trenta3/goahead-versions/blob/master/2.1.8/230165webs218.tar.gz?raw=true No Types Assigned https://github.com/trenta3/goahead-versions/blob/master/2.1.8/230165webs218.tar.gz?raw=true Product, Third Party Advisory Added CWE NIST CWE-331 Added CPE Configuration OR *cpe:2.3:a:embedthis:goahead:2.1.8:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-41615 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-41615
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.41 }} 0.12%
score
0.74352
percentile