Red Hat openshift-clients up to 4.7.0-202104250659.p0.git.95881af ZIP File input validation

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$5k-$25k0.00

A vulnerability classified as critical has been found in Red Hat openshift-clients up to 4.7.0-202104250659.p0.git.95881af (Virtualization Software). Affected is some unknown functionality of the component ZIP File Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-20. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A Zip Slip vulnerability was found in the oc binary in openshift-clients where an arbitrary file write is achieved by using a specially crafted raw container image (.tar file) which contains symbolic links. The vulnerability is limited to the command `oc image extract`. If a symbolic link is first created pointing within the tarball, this allows further symbolic links to bypass the existing path check. This flaw allows the tarball to create links outside the tarball's parent directory, allowing for executables or configuration files to be overwritten, resulting in arbitrary code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Versions up to and including openshift-clients-4.7.0-202104250659.p0.git.95881af are affected.

The weakness was disclosed 05/15/2021. The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2020-27833 since 10/27/2020. The attack can only be initiated within the local network. A authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 05/19/2021).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

10/27/2020 CVE assigned
05/15/2021 +199 days Advisory disclosed
05/15/2021 +0 days VulDB entry created
05/19/2021 +4 days VulDB last update

Sourcesinfoedit

Vendor: https://www.redhat.com/

Advisory: bugzilla.redhat.com
Status: Not defined
Confirmation: 🔒

CVE: CVE-2020-27833 (🔒)

Entryinfoedit

Created: 05/15/2021 06:17 PM
Updated: 05/19/2021 08:52 PM
Changes: (3) source_cve_assigned source_cve_nvd_summary advisory_confirm_url
Complete: 🔍

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