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Vulnerability details: VCID-nqbc-965x-aaag
Vulnerability ID VCID-nqbc-965x-aaag
Aliases CVE-2020-25017
Summary Envoy through 1.15.0 only considers the first value when multiple header values are present for some HTTP headers. Envoy’s setCopy() header map API does not replace all existing occurences of a non-inline header.
Status Published
Exploitability 0.5
Weighted Severity 7.5
Risk 3.8
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-284 Improper Access Control
System Score Found at
rhas Moderate https://access.redhat.com/errata/RHSA-2020:4129
cvssv3 8.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-25017.json
epss 0.00053 https://api.first.org/data/v1/epss?cve=CVE-2020-25017
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rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1877613
cvssv3.1 8.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-25017
cvssv3 8.3 https://nvd.nist.gov/vuln/detail/CVE-2020-25017
cvssv3.1 8.3 https://nvd.nist.gov/vuln/detail/CVE-2020-25017
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-25017.json
https://api.first.org/data/v1/epss?cve=CVE-2020-25017
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/envoyproxy/envoy/security/advisories/GHSA-2v25-cjjq-5f4w
https://groups.google.com/forum/#%21forum/envoy-security-announce
https://groups.google.com/forum/#!forum/envoy-security-announce
1877613 https://bugzilla.redhat.com/show_bug.cgi?id=1877613
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
CVE-2020-25017 https://nvd.nist.gov/vuln/detail/CVE-2020-25017
ISTIO-SECURITY-2020-010 https://istio.io/latest/news/security/ISTIO-SECURITY-2020-010/
RHSA-2020:4129 https://access.redhat.com/errata/RHSA-2020:4129
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-25017.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-25017
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L Found at https://nvd.nist.gov/vuln/detail/CVE-2020-25017
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L Found at https://nvd.nist.gov/vuln/detail/CVE-2020-25017
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.13578
EPSS Score 0.00053
Published At March 28, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.