9.8
CRITICAL
CVE-2021-3762
Clair Directory Traversal Remote Code Execution
Description

A directory traversal vulnerability was found in the ClairCore engine of Clair. An attacker can exploit this by supplying a crafted container image which, when scanned by Clair, allows for arbitrary file write on the filesystem, potentially allowing for remote code execution.

INFO

Published Date :

March 3, 2022, 10:15 p.m.

Last Modified :

Jan. 30, 2023, 7:17 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-3762 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 quay
2 Redhat clair
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-2021-3762.

URL Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2000795 Issue Tracking Patch Third Party Advisory
https://github.com/quay/clair/pull/1379 Patch Third Party Advisory
https://github.com/quay/clair/pull/1380 Patch Third Party Advisory
https://github.com/quay/claircore/commit/691f2023a1720a0579e688b69a2f4bfe1f4b7821 Patch Third Party Advisory
https://github.com/quay/claircore/pull/478 Patch Third Party Advisory
https://vulmon.com/exploitdetails?qidtp=maillist_oss_security&qid=d19fce9ede06e13dfb5630ece7f14f83 Exploit Third Party 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).

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

The following list is the news that have been mention CVE-2021-3762 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-3762 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 [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Jan. 30, 2023

    Action Type Old Value New Value
    Removed CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Removed CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Removed CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Initial Analysis by [email protected]

    Mar. 16, 2022

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2000795 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2000795 Issue Tracking, Patch, Third Party Advisory
    Changed Reference Type https://github.com/quay/clair/pull/1379 No Types Assigned https://github.com/quay/clair/pull/1379 Patch, Third Party Advisory
    Changed Reference Type https://github.com/quay/clair/pull/1380 No Types Assigned https://github.com/quay/clair/pull/1380 Patch, Third Party Advisory
    Changed Reference Type https://github.com/quay/claircore/commit/691f2023a1720a0579e688b69a2f4bfe1f4b7821 No Types Assigned https://github.com/quay/claircore/commit/691f2023a1720a0579e688b69a2f4bfe1f4b7821 Patch, Third Party Advisory
    Changed Reference Type https://github.com/quay/claircore/pull/478 No Types Assigned https://github.com/quay/claircore/pull/478 Patch, Third Party Advisory
    Changed Reference Type https://vulmon.com/exploitdetails?qidtp=maillist_oss_security&qid=d19fce9ede06e13dfb5630ece7f14f83 No Types Assigned https://vulmon.com/exploitdetails?qidtp=maillist_oss_security&qid=d19fce9ede06e13dfb5630ece7f14f83 Exploit, Third Party Advisory
    Added CWE NIST CWE-22
    Added CPE Configuration OR *cpe:2.3:a:redhat:clair:*:*:*:*:*:*:*:* versions from (including) 0.4.6 up to (excluding) 0.4.8 *cpe:2.3:a:redhat:clair:*:*:*:*:*:*:*:* versions from (including) 0.5.3 up to (excluding) 0.5.5
    Added CPE Configuration OR *cpe:2.3:a:redhat:quay:3.5.6:*:*:*:*:*:*:*
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-2021-3762 is associated with the following CWEs:

Exploit Prediction

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

11.50 }} 3.53%

score

0.95442

percentile

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