7.3
HIGH
CVE-2020-8595
Istio JWT Token Authentication Exact-Path Matching Bypass
Description

Istio versions 1.2.10 (End of Life) and prior, 1.3 through 1.3.7, and 1.4 through 1.4.3 allows authentication bypass. The Authentication Policy exact-path matching logic can allow unauthorized access to HTTP paths even if they are configured to be only accessed after presenting a valid JWT token. For example, an attacker can add a ? or # character to a URI that would otherwise satisfy an exact-path match.

INFO

Published Date :

Feb. 12, 2020, 3:15 p.m.

Last Modified :

Nov. 21, 2024, 5:39 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

3.4

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2020-8595 has a 7 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-8595 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux
2 Redhat openshift_service_mesh
1 Istio istio
: Total Affected Vendor : 2 | Products : 3
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-8595.

URL Resource
https://access.redhat.com/errata/RHSA-2020:0477 Third Party Advisory
https://access.redhat.com/security/cve/cve-2020-8595 Mitigation Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-8595 Issue Tracking Mitigation Third Party Advisory
https://github.com/istio/istio/commits/master Patch
https://istio.io/news/security/ Vendor Advisory
https://istio.io/news/security/istio-security-2020-001/ Patch Vendor Advisory
https://access.redhat.com/errata/RHSA-2020:0477 Third Party Advisory
https://access.redhat.com/security/cve/cve-2020-8595 Mitigation Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-8595 Issue Tracking Mitigation Third Party Advisory
https://github.com/istio/istio/commits/master Patch
https://istio.io/news/security/ Vendor Advisory
https://istio.io/news/security/istio-security-2020-001/ Patch Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

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43622283/awesome-cloud-native-security

None

Updated: 9 months, 4 weeks ago
0 stars 0 fork 0 watcher
Born at : Feb. 24, 2024, 8:03 a.m. This repo has been linked 37 different CVEs too.
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orgTestCodacy11KRepos110MB/repo-3569-collection-document

None

Updated: 1 year, 10 months ago
0 stars 0 fork 0 watcher
Born at : Jan. 31, 2023, 3:37 a.m. This repo has been linked 14 different CVEs too.
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atesemre/awesome-cloud-native-security

None

Updated: 11 months, 2 weeks ago
4 stars 0 fork 0 watcher
Born at : Aug. 15, 2022, 11:26 a.m. This repo has been linked 35 different CVEs too.
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Metarget/cloud-native-security-book

《云原生安全：攻防实践与体系构建》资料仓库

Dockerfile C Shell Makefile Assembly Go Python

Updated: 2 weeks, 4 days ago
728 stars 124 fork 124 watcher
Born at : Sept. 25, 2021, 1:56 p.m. This repo has been linked 12 different CVEs too.
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reni2study/Cloud-Native-Security2

None

Updated: 2 years, 3 months ago
1 stars 0 fork 0 watcher
Born at : Sept. 1, 2021, 8:40 a.m. This repo has been linked 24 different CVEs too.
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Metarget/awesome-cloud-native-security

awesome resources about cloud native security 🐿

cloud-native container-security cloud-native-security kubernetes-security container-escape k8s kubernetes container docker docker-security serverless serverless-security cloud-security cloud-computing

Updated: 1 month, 1 week ago
309 stars 51 fork 51 watcher
Born at : March 23, 2021, 12:40 p.m. This repo has been linked 37 different CVEs too.
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tom0li/collection-document

Collection of quality safety articles. Awesome articles.

dns pentest list security sec hacking src bug-bounty fuzz xss research github waf java hacker redteam bounty-hunters web cloud awesome

Updated: 2 weeks, 4 days ago
2021 stars 466 fork 466 watcher
Born at : Aug. 31, 2017, 1:46 p.m. This repo has been linked 14 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-8595 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-8595 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2020:0477
    Added Reference https://access.redhat.com/security/cve/cve-2020-8595
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-8595
    Added Reference https://github.com/istio/istio/commits/master
    Added Reference https://istio.io/news/security/
    Added Reference https://istio.io/news/security/istio-security-2020-001/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Feb. 14, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
    Changed Reference Type https://access.redhat.com/errata/RHSA-2020:0477 No Types Assigned https://access.redhat.com/errata/RHSA-2020:0477 Third Party Advisory
    Changed Reference Type https://access.redhat.com/security/cve/cve-2020-8595 No Types Assigned https://access.redhat.com/security/cve/cve-2020-8595 Mitigation, Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-8595 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-8595 Issue Tracking, Mitigation, Third Party Advisory
    Changed Reference Type https://github.com/istio/istio/commits/master No Types Assigned https://github.com/istio/istio/commits/master Patch
    Changed Reference Type https://istio.io/news/security/ No Types Assigned https://istio.io/news/security/ Vendor Advisory
    Changed Reference Type https://istio.io/news/security/istio-security-2020-001/ No Types Assigned https://istio.io/news/security/istio-security-2020-001/ Patch, Vendor Advisory
    Added CWE NIST CWE-287
    Added CPE Configuration OR *cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:* versions from (including) 1.3 up to (including) 1.3.7 *cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:* versions from (including) 1.4.0 up to (including) 1.4.3
    Added CPE Configuration AND OR *cpe:2.3:a:redhat:openshift_service_mesh:1.0:*:*:*:*:*:*:* OR cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 13, 2020

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2020:0477 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-8595 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-8595 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.24 }} -0.10%

score

0.61479

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: