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CVE-2016-10174: NETGEAR WNR2000v5 Router Buffer Overflow Vulnerability
CVE-2016-10174 is rated critical with a CVSS v3.1 base score of 9.8 and affects NETGEAR WNR2000v5 Router, along with 28 other products in NVD’s configuration data. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-03-25, which means exploitation in the wild has been observed.
Vulnerability description
The NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter when invoking the URL /apply.cgi?/lang_check.html. This buffer overflow can be exploited by an unauthenticated attacker to achieve remote code execution.
Severity breakdown
CVSS v3.1 9.8: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Scope: Unchanged. Impact stays within the vulnerable component.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Underlying weakness
CWE-120: Buffer Copy without Checking Size of Input
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
Affected products
- Netgear D6100 Firmware: all versions listed by NVD
- Netgear D7000 Firmware: all versions listed by NVD
- Netgear D7800 Firmware: all versions listed by NVD
- Netgear Jnr1010v2 Firmware: all versions listed by NVD
- Netgear Jnr3300 Firmware: all versions listed by NVD
- Netgear Jwnr2010v5 Firmware: all versions listed by NVD
- Netgear R2000 Firmware: all versions listed by NVD
- Netgear R6100 Firmware: all versions listed by NVD
- Netgear R6220 Firmware: all versions listed by NVD
- Netgear R7500 Firmware: all versions listed by NVD
- Netgear R7500v2 Firmware: all versions listed by NVD
- Netgear Wndr3700v4 Firmware: all versions listed by NVD
- Netgear Wndr3800 Firmware: all versions listed by NVD
- Netgear Wndr4300 Firmware: all versions listed by NVD
- Netgear Wndr4300v2 Firmware: all versions listed by NVD
References
- http://kb.netgear.com/000036549/Insecure-Remote-Access-and-Command-Execution-Security-Vulnerability
- http://seclists.org/fulldisclosure/2016/Dec/72
- http://www.securityfocus.com/bid/95867
- https://raw.githubusercontent.com/pedrib/PoC/master/advisories/netgear-wnr2000.txt
- https://www.exploit-db.com/exploits/40949/
- https://www.exploit-db.com/exploits/41719/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-10174