Lucene search

K
nvd[email protected]NVD:CVE-2020-35470
HistoryDec 15, 2020 - 1:15 a.m.

CVE-2020-35470

2020-12-1501:15:13
web.nvd.nist.gov
4
envoy
logs
incorrect downstream address
tcp-proxy network filter

CVSS2

5.8

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.5

Confidence

High

EPSS

0.001

Percentile

34.6%

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).

Affected configurations

Nvd
Node
envoyproxyenvoyRange<1.16.1
VendorProductVersionCPE
envoyproxyenvoy*cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*

CVSS2

5.8

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.5

Confidence

High

EPSS

0.001

Percentile

34.6%

Related for NVD:CVE-2020-35470