Critical severity · published May 21, 2021
CVE-2021-33514
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker via the vulnerable /sqfs/lib/libsal.so.0.0 library used by a CGI application, as…
9.8
CVSS
7.9%
EPSS
No
On KEV
Description
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker via the vulnerable /sqfs/lib/libsal.so.0.0 library used by a CGI application, as demonstrated by setup.cgi?token=';$HTTP_USER_AGENT;' with an OS command in the User-Agent field. This affects GC108P before 1.0.7.3, GC108PP before 1.0.7.3, GS108Tv3 before 7.0.6.3, GS110TPPv1 before 7.0.6.3, GS110TPv3 before 7.0.6.3, GS110TUPv1 before 1.0.4.3, GS710TUPv1 before 1.0.4.3, GS716TP before 1.0.2.3, GS716TPP before 1.0.2.3, GS724TPPv1 before 2.0.4.3, GS724TPv2 before 2.0.4.3, GS728TPPv2 before 6.0.6.3, GS728TPv2 before 6.0.6.3, GS752TPPv1 before 6.0.6.3, GS752TPv2 before 6.0.6.3, MS510TXM before 1.0.2.3, and MS510TXUP before 1.0.2.3.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.9% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GF
Gc108p Firmware · Netgear
before 1.0.7.3 · source: NVD
GF
Gc108pp Firmware · Netgear
before 1.0.7.3 · source: NVD
GF
Gs108t Firmware · Netgear
before 7.0.6.3 · source: NVD
GF
Gs110tp Firmware · Netgear
before 7.0.6.3 · source: NVD
GF
Gs110tpp Firmware · Netgear
before 7.0.6.3 · source: NVD
GF
Gs110tup Firmware · Netgear
before 1.0.4.3 · source: NVD
GF
Gs710tup Firmware · Netgear
before 1.0.4.3 · source: NVD
GF
Gs716tp Firmware · Netgear
before 1.0.2.3 · source: NVD
GF
Gs716tpp Firmware · Netgear
before 1.0.2.3 · source: NVD
GF
Gs724tp Firmware · Netgear
before 2.0.4.3 · source: NVD
GF
Gs724tpp Firmware · Netgear
before 2.0.4.3 · source: NVD
GF
Gs728tp Firmware · Netgear
before 6.0.6.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-33514
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-33514
Exploit
https://gynvael.coldwind.pl/?lang=en&id=733
Vendor Advisory
https://kb.netgear.com/000063641/Security-Advisory-for-Pre-Authentication-Command-Injection-Vulnerability-on-Some-Smart-Switches-PSV-2021-0071
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