CVE-2021-3762

quay/claircore: directory traversal when scanning crafted container image layer allows for arbitrary file write

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Se ha encontrado una vulnerabilidad de salto de directorio en el motor ClairCore de Clair. Un atacante puede explotar esto al suministrar una imagen de contenedor diseñada que, cuando es escaneada por Clair, permite una escritura de archivos arbitrarios en el sistema de archivos, permitiendo potencialmente una ejecución de código remota

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-09-03 CVE Reserved
2022-03-03 CVE Published
2024-05-25 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CAPEC

References (7)

URL	Tag	Source

URL	Date	SRC
https://vulmon.com/exploitdetails?qidtp=maillist_oss_security&qid=d19fce9ede06e13dfb5630ece7f14f83	2024-08-03

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=2000795	2021-09-28
https://github.com/quay/clair/pull/1379	2023-01-30
https://github.com/quay/clair/pull/1380	2023-01-30
https://github.com/quay/claircore/commit/691f2023a1720a0579e688b69a2f4bfe1f4b7821	2023-01-30
https://github.com/quay/claircore/pull/478	2023-01-30

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2021-3762	2021-09-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Redhat Search vendor "Redhat"		Clair Search vendor "Redhat" for product "Clair"				>= 0.4.6 < 0.4.8 Search vendor "Redhat" for product "Clair" and version " >= 0.4.6 < 0.4.8"		-		Affected
Redhat Search vendor "Redhat"		Clair Search vendor "Redhat" for product "Clair"				>= 0.5.3 < 0.5.5 Search vendor "Redhat" for product "Clair" and version " >= 0.5.3 < 0.5.5"		-		Affected
Redhat Search vendor "Redhat"		Quay Search vendor "Redhat" for product "Quay"				3.5.6 Search vendor "Redhat" for product "Quay" and version "3.5.6"		-		Affected