Zyxel NAS326/NAS542 prior 5.21 HTTP POST Request setCookie os command injection

CVSS Meta Temp Score
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Zyxel NAS326 and NAS542. It has been rated as critical. This vulnerability affects unknown code of the component HTTP POST Request Handler. Performing a manipulation of the argument setCookie results in os command injection. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability was named CVE-2024-29973. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Zyxel NAS326 and NAS542. It has been classified as very critical. This affects an unknown function of the component HTTP POST Request Handler. The manipulation of the argument setCookie with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

** UNSUPPORTED WHEN ASSIGNED ** The command injection vulnerability in the “setCookie” parameter in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted HTTP POST request.

The advisory is shared at zyxel.com. This vulnerability is uniquely identified as CVE-2024-29973 since 03/22/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/04/2024). MITRE ATT&CK project uses the attack technique T1202 for this issue.

Upgrading to version 5.21 eliminates this vulnerability.

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Productinfo

Vendor

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License

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (Zyxel Corporation): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: NAS326/NAS542 5.21

Timelineinfo

03/22/2024 🔍
06/04/2024 +73 days 🔍
06/04/2024 +0 days 🔍
06/04/2024 +0 days 🔍

Sourcesinfo

Vendor: zyxel.com

Advisory: zyxel.com
Status: Confirmed

CVE: CVE-2024-29973 (🔍)
GCVE (CVE): GCVE-0-2024-29973
GCVE (VulDB): GCVE-100-266973

Entryinfo

Created: 06/04/2024 06:47
Updated: 06/04/2024 17:18
Changes: 06/04/2024 06:47 (65), 06/04/2024 06:48 (1), 06/04/2024 17:18 (1)
Complete: 🔍
Cache ID: 216::103

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