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Vulnerability details: VCID-xvca-rqnx-aaas
Vulnerability ID VCID-xvca-rqnx-aaas
Aliases CVE-2021-34824
Summary Istio (1.8.x, 1.9.0-1.9.5 and 1.10.0-1.10.1) contains a remotely exploitable vulnerability where credentials specified in the Gateway and DestinationRule credentialName field can be accessed from different namespaces.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-863 Incorrect Authorization
System Score Found at
cvssv3 9.1 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-34824.json
epss 0.00104 https://api.first.org/data/v1/epss?cve=CVE-2021-34824
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epss 0.0107 https://api.first.org/data/v1/epss?cve=CVE-2021-34824
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epss 0.0107 https://api.first.org/data/v1/epss?cve=CVE-2021-34824
epss 0.13894 https://api.first.org/data/v1/epss?cve=CVE-2021-34824
rhbs high https://bugzilla.redhat.com/show_bug.cgi?id=1973478
cvssv3.1 6.8 https://github.com/istio/istio/releases
generic_textual MODERATE https://github.com/istio/istio/releases
cvssv2 6.5 https://nvd.nist.gov/vuln/detail/CVE-2021-34824
cvssv3 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-34824
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-34824
archlinux Critical https://security.archlinux.org/AVG-2113
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-34824.json
https://api.first.org/data/v1/epss?cve=CVE-2021-34824
https://github.com/istio/istio/releases
https://istio.io/latest/news/security/istio-security-2021-007
1973478 https://bugzilla.redhat.com/show_bug.cgi?id=1973478
ASA-202107-3 https://security.archlinux.org/ASA-202107-3
AVG-2113 https://security.archlinux.org/AVG-2113
cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*
CVE-2021-34824 https://nvd.nist.gov/vuln/detail/CVE-2021-34824
ISTIO-SECURITY-2021-007 https://istio.io/latest/news/security/ISTIO-SECURITY-2021-007/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-34824.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:H/PR:L/UI:N/S:U/C:H/I:H/A:N Found at https://github.com/istio/istio/releases
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:S/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-34824
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:L/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-34824
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:L/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-34824
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 0.43574
EPSS Score 0.00104
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.