What is the CVSS score of CVE-2021-3116?

CVE-2021-3116 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 1.7%.

Is there a public PoC exploit available for CVE-2021-3116?

Yes, a public proof-of-concept exploit is available for CVE-2021-3116. Prioritise patching immediately. EPSS: 1.7%.

Is there a patch available for CVE-2021-3116?

Yes, a patch is available for CVE-2021-3116. Update the affected software to the latest version immediately.

Proxy Py CVE-2021-3116

HIGH

Incorrect Comparison (CWE-697)

2021-01-11 cve@mitre.org

Information Disclosure Proxy Py

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Jan 11, 2021 - 05:15 nvd

HIGH 7.5

DescriptionNVD

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).

AnalysisAI

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). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-697. 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). Affected products include: Proxy.Py Project Proxy.Py. Version information: before 2.3.1.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.