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Vulnerability Details :

CVE-2020-8843

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-14 Feb, 2020 | 18:45
Updated At-04 Aug, 2024 | 10:12
Rejected At-
Credits

An issue was discovered in Istio 1.3 through 1.3.6. Under certain circumstances, it is possible to bypass a specifically configured Mixer policy. Istio-proxy accepts the x-istio-attributes header at ingress that can be used to affect policy decisions when Mixer policy selectively applies to a source equal to ingress. To exploit this vulnerability, someone has to encode a source.uid in this header. This feature is disabled by default in Istio 1.3 and 1.4.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:14 Feb, 2020 | 18:45
Updated At:04 Aug, 2024 | 10:12
Rejected At:
▼CVE Numbering Authority (CNA)

An issue was discovered in Istio 1.3 through 1.3.6. Under certain circumstances, it is possible to bypass a specifically configured Mixer policy. Istio-proxy accepts the x-istio-attributes header at ingress that can be used to affect policy decisions when Mixer policy selectively applies to a source equal to ingress. To exploit this vulnerability, someone has to encode a source.uid in this header. This feature is disabled by default in Istio 1.3 and 1.4.

Affected Products
Vendor
n/a
Product
n/a
Versions
Affected
  • n/a
Problem Types
TypeCWE IDDescription
textN/An/a
Type: text
CWE ID: N/A
Description: n/a
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/istio/istio/commits/master
x_refsource_MISC
https://istio.io/news/security/
x_refsource_MISC
https://istio.io/news/security/istio-security-2020-002/
x_refsource_CONFIRM
Hyperlink: https://github.com/istio/istio/commits/master
Resource:
x_refsource_MISC
Hyperlink: https://istio.io/news/security/
Resource:
x_refsource_MISC
Hyperlink: https://istio.io/news/security/istio-security-2020-002/
Resource:
x_refsource_CONFIRM
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/istio/istio/commits/master
x_refsource_MISC
x_transferred
https://istio.io/news/security/
x_refsource_MISC
x_transferred
https://istio.io/news/security/istio-security-2020-002/
x_refsource_CONFIRM
x_transferred
Hyperlink: https://github.com/istio/istio/commits/master
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://istio.io/news/security/
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://istio.io/news/security/istio-security-2020-002/
Resource:
x_refsource_CONFIRM
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:14 Feb, 2020 | 19:15
Updated At:19 Feb, 2020 | 16:16

An issue was discovered in Istio 1.3 through 1.3.6. Under certain circumstances, it is possible to bypass a specifically configured Mixer policy. Istio-proxy accepts the x-istio-attributes header at ingress that can be used to affect policy decisions when Mixer policy selectively applies to a source equal to ingress. To exploit this vulnerability, someone has to encode a source.uid in this header. This feature is disabled by default in Istio 1.3 and 1.4.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.17.4HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Primary2.05.8MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:N
Type: Primary
Version: 3.1
Base score: 7.4
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Type: Primary
Version: 2.0
Base score: 5.8
Base severity: MEDIUM
Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:N
CPE Matches

istio
istio
>>istio>>Versions from 1.3.0(inclusive) to 1.3.6(inclusive)
cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-20Primarynvd@nist.gov
CWE ID: CWE-20
Type: Primary
Source: nvd@nist.gov
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/istio/istio/commits/mastercve@mitre.org
Patch
https://istio.io/news/security/cve@mitre.org
Vendor Advisory
https://istio.io/news/security/istio-security-2020-002/cve@mitre.org
Vendor Advisory
Hyperlink: https://github.com/istio/istio/commits/master
Source: cve@mitre.org
Resource:
Patch
Hyperlink: https://istio.io/news/security/
Source: cve@mitre.org
Resource:
Vendor Advisory
Hyperlink: https://istio.io/news/security/istio-security-2020-002/
Source: cve@mitre.org
Resource:
Vendor Advisory

Change History

0
Information is not available yet

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