CVE-2021-28801

Out-of-Bounds Read Vulnerability in QSS

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An out-of-bounds read vulnerability has been reported to affect certain QNAP switches running QSS. If exploited, this vulnerability allows attackers to read sensitive information on the system. This issue affects: QNAP Systems Inc. QSS versions prior to 1.0.2 build 20210122 on QSW-M2108-2C; versions prior to 1.0.2 build 20210122 on QSW-M2108-2S; versions prior to 1.0.2 build 20210122 on QSW-M2108R-2C.

Se ha reportado una vulnerabilidad de lectura fuera de límites que afecta a determinados switches de QNAP que ejecutan QSS. Si es explotada, esta vulnerabilidad permite a atacantes leer información confidencial en el sistema. Este problema afecta: QNAP Systems Inc. versiones de QSS versiones anteriores a 1.0.2 build 20210122 en QSW-M2108-2C; versiones anteriores a 1.0.2 build 20210122 en QSW-M2108-2S; versiones anteriores a 1.0.2 build 20210122 en QSW-M2108R-2C

*Credits: Qian Chen from Codesafe Team of Legendsec at Qi'anxin Group

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-03-18 CVE Reserved
2021-06-11 CVE Published
2024-02-25 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.qnap.com/zh-tw/security-advisory/qsa-21-23	2021-06-23

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Qnap Search vendor "Qnap"	Qss Search vendor "Qnap" for product "Qss"	< 1.0.2 Search vendor "Qnap" for product "Qss" and version " < 1.0.2"	-	Affected	in	Qnap Search vendor "Qnap"	Qsw-m2108-2c Search vendor "Qnap" for product "Qsw-m2108-2c"	-	-	Safe
Qnap Search vendor "Qnap"	Qss Search vendor "Qnap" for product "Qss"	< 1.0.2 Search vendor "Qnap" for product "Qss" and version " < 1.0.2"	-	Affected	in	Qnap Search vendor "Qnap"	Qsw-m2108-2s Search vendor "Qnap" for product "Qsw-m2108-2s"	-	-	Safe
Qnap Search vendor "Qnap"	Qss Search vendor "Qnap" for product "Qss"	< 1.0.2 Search vendor "Qnap" for product "Qss" and version " < 1.0.2"	-	Affected	in	Qnap Search vendor "Qnap"	Qsw-m2108r-2c Search vendor "Qnap" for product "Qsw-m2108r-2c"	-	-	Safe