CVE-2021-34979
published 2022-01-13CVE-2021-34979: This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 1.1.0.78_1.0.1 routers…
PriorityP356high8.8CVSS 3.1
AVAACLPRNUINSUCHIHAH
EPSS
1.37%
69.0th percentile
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 1.1.0.78_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of SOAP requests. When parsing the SOAPAction header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13512.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| netgear | r6260 | — | — |
| netgear | r6260_firmware | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv3.08.8HIGHCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.08.3HIGHAV:A/AC:L/Au:N/C:C/I:C/A:C
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Suricata
ET EXPLOIT Netgear R6260 Mini_httpd Buffer Overflow Attempt - Possible RCE (CVE-2021-34979)
suricata·2022-03-14·CVSS 8.8
CVE-2021-34979 [HIGH] ET EXPLOIT Netgear R6260 Mini_httpd Buffer Overflow Attempt - Possible RCE (CVE-2021-34979)
ET EXPLOIT Netgear R6260 Mini_httpd Buffer Overflow Attempt - Possible RCE (CVE-2021-34979)
Rule: alert http any any -> $HOME_NET any (msg:"ET EXPLOIT Netgear R6260 Mini_httpd Buffer Overflow Attempt - Possible RCE (CVE-2021-34979)"; flow:established,to_server; http.request_header; header_lowercase; content:"soapaction|3a 20|"; startswith; content:"urn:NETGEAR-ROUTER:service:"; within:30; fast_pattern; isdataat:131,relative; pcre:"/^SOAPAction\x3a\x20\x22?urn\x3aNETGEAR-ROUTER\x3aservice\x3a.{128,}(?!:\d#)/"; http.request_body; content:"|3c 3f|xml"; startswith; reference:url,nstarke.github.io/netgear/nday/2022/03/13/reverse-engineering-a-netgear-nday.html; reference:cve,2021-34979; classtype:trojan-activity; sid:2035446; rev:2; metadata:attack_target Networking_Equipment, created_at 2022_
No public exploits indexed.
No writeups or analysis indexed.
https://kb.netgear.com/000064261/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Routers-PSV-2021-0152?article=000064261https://www.zerodayinitiative.com/advisories/ZDI-21-1241/https://kb.netgear.com/000064261/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Routers-PSV-2021-0152?article=000064261https://www.zerodayinitiative.com/advisories/ZDI-21-1241/
2022-01-13
Published