Vulnerability Monitor

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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 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.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.8, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 34 products from netgear, from netgear, from netgear and 31 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2021-05-21T23:15:07.377

Last Modified

2024-11-21T06:08:59.750

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-78

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System netgear gc108p_firmware < 1.0.7.3 Yes
Hardware netgear gc108p - No
Operating System netgear gc108pp_firmware < 1.0.7.3 Yes
Hardware netgear gc108pp - No
Operating System netgear gs108t_firmware < 7.0.6.3 Yes
Hardware netgear gs108tv3 - No
Operating System netgear gs110tpp_firmware < 7.0.6.3 Yes
Hardware netgear gs110tpp v1 No
Operating System netgear gs110tp_firmware < 7.0.6.3 Yes
Hardware netgear gs110tp v3 No
Operating System netgear gs110tup_firmware < 1.0.4.3 Yes
Hardware netgear gs110tup v1 No
Operating System netgear gs710tup_firmware < 1.0.4.3 Yes
Hardware netgear gs710tup v1 No
Operating System netgear gs716tp_firmware < 1.0.2.3 Yes
Hardware netgear gs716tp - No
Operating System netgear gs716tpp_firmware < 1.0.2.3 Yes
Hardware netgear gs716tpp - No
Operating System netgear gs724tpp_firmware < 2.0.4.3 Yes
Hardware netgear gs724tpp v1 No
Operating System netgear gs724tp_firmware < 2.0.4.3 Yes
Hardware netgear gs724tp v2 No
Operating System netgear gs728tpp_firmware < 6.0.6.3 Yes
Hardware netgear gs728tpp v2 No
Operating System netgear gs728tp_firmware < 6.0.6.3 Yes
Hardware netgear gs728tp v2 No
Operating System netgear gs752tpp_firmware < 6.0.6.3 Yes
Hardware netgear gs752tpp v1 No
Operating System netgear gs752tp_firmware < 6.0.6.3 Yes
Hardware netgear gs752tp v2 No
Operating System netgear ms510txm_firmware < 1.0.2.3 Yes
Hardware netgear ms510txm - No
Operating System netgear ms510txup_firmware < 1.0.2.3 Yes
Hardware netgear ms510txup - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For netgear's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.