Netgear GC108P setup.cgi User-Agent os command injection

Summaryinfo

A vulnerability marked as critical has been reported in Netgear GC108P, GC108PP, GS108Tv3, GS110TPPv1, GS110TPv3, GS110TUPv1, GS710TUPv1, GS716TP, GS716TPP, GS724TPPv1, GS724TPv2, GS728TPPv2, GS728TPv2, GS752TPPv1, GS752TPv2, MS510TXM and MS510TXUP. Affected is an unknown function in the library /sqfs/lib/libsal.so.0.0 of the file setup.cgi. Performing a manipulation of the argument User-Agent results in os command injection. This vulnerability is known as CVE-2021-33514. Access to the local network is required for this attack. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Netgear GC108P, GC108PP, GS108Tv3, GS110TPPv1, GS110TPv3, GS110TUPv1, GS710TUPv1, GS716TP, GS716TPP, GS724TPPv1, GS724TPv2, GS728TPPv2, GS728TPv2, GS752TPPv1, GS752TPv2, MS510TXM and MS510TXUP (Router Operating System). It has been classified as critical. This affects an unknown code in the library /sqfs/lib/libsal.so.0.0 of the file setup.cgi. The manipulation of the argument User-Agent 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 weakness was published 05/22/2021. It is possible to read the advisory at gynvael.coldwind.pl. This vulnerability is uniquely identified as CVE-2021-33514. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/27/2021). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at kb.netgear.com.

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Productinfo

Type

• Router Operating System

Vendor

• Netgear

Name

• GC108P
• GC108PP
• GS108Tv3
• GS110TPPv1
• GS110TPv3
• GS110TUPv1
• GS710TUPv1
• GS716TP
• GS716TPP
• GS724TPPv1
• GS724TPv2
• GS728TPPv2
• GS728TPv2
• GS752TPPv1
• GS752TPv2
• MS510TXM
• MS510TXUP

License

• commercial

Website

• Vendor: https://www.netgear.com/

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