Vulnerability Report

CVE-2020-35470

Title: Envoy Incorrect Downstream Address Logging

Information Disclosure

Proof Of Concept

No public PoC currently indexed for CVE-2020-35470.

CWE Category NVD-CWE-noinfo

Published Date Dec 15, 2020

Modified Date Nov 21, 2024

Exploit Status Not Found

Score 8.8 CVSS v3.1

Exploit Probability (EPSS)

0.97%

Vulnerability Summary

CVE-2020-35470: Envoy before 1.16.1 logs an incorrect downstream address because it considers only the directly connected peer, not the information in the proxy protocol header. This affects situations with tcp-proxy as the network filter (not HTTP filters).

Impacted Vendors

enphase 1

envoyproxy 1

Reference Links

https://github.com/envoyproxy/envoy/compare/v1.16.0...v1.16.1 https://github.com/envoyproxy/envoy/issues/14087 https://github.com/envoyproxy/envoy/pull/14131 https://github.com/envoyproxy/envoy/compare/v1.16.0...v1.16.1 https://github.com/envoyproxy/envoy/issues/14087 https://github.com/envoyproxy/envoy/pull/14131

CVSS v3.1

Source Entity [email protected]

Severity HIGH

8.8

Attack Vector

ADJACENT_NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

5.8

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:A/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-35470 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

November 21, 2024 MODIFIED

Vulnerability data or affected products updated.

December 15, 2020 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector ADJACENT_NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.