Vulnerability Details : CVE-2021-3116
before_upstream_connection in AuthPlugin in http/proxy/auth.py in proxy.py before 2.3.1 accepts incorrect Proxy-Authorization header data because of a boolean confusion (and versus or).
Products affected by CVE-2021-3116
- cpe:2.3:a:proxy.py_project:proxy.py:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-3116
0.16%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 51 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3116
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-3116
-
The product compares two entities in a security-relevant context, but the comparison is incorrect, which may lead to resultant weaknesses.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-3116
-
https://github.com/abhinavsingh/proxy.py/pull/482/commits/9b00093288237f5073c403f2c4f62acfdfa8ed46
Fix basic auth condition by abhinavsingh · Pull Request #482 · abhinavsingh/proxy.py · GitHubPatch
-
https://pypi.org/project/proxy.py/2.3.1/#history
proxy.py · PyPIProduct
-
https://cardaci.xyz/advisories/2021/01/10/proxy.py-2.3.0-broken-basic-authentication/
proxy.py 2.3.0 — Broken basic authenticationExploit;Third Party Advisory
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