vulnwire
9.8crit

CVE-2018-25317

Tenda W3002R/A302/W309R V5.07.64_en Cookie Session Weakness DNS Change

Published 6 mo ago · modified 37 d ago · JSON

CVSS
9.8
v3.1 · CNA
CISA KEV
No
not known exploited
EPSS
0.7%
percentile 51%
Public exploits
0
none known

Tenda W3002R/A302/W309R wireless routers version V5.07.64_en contain a cookie session weakness vulnerability that allows unauthenticated attackers to modify DNS settings by exploiting insufficient session validation. Attackers can send GET requests to the /goform/AdvSetDns endpoint with a crafted admin language cookie to change primary and secondary DNS servers, redirecting user traffic to malicious DNS servers.

CISA SSVC assessment

Exploitation
Proof of concept public
Automatable
yes
Technical impact
total
Assessed
6 mo ago

Exploit prediction (EPSS)

0.65% probability of exploitation in the next 30 days, higher than 51% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA4.09.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA3.19.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA4.09.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA3.19.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Tenda W3002R
  • Tenda A302
  • Tenda W309R

Classification

Weakness
  • CWE-290 Authentication Bypass by Spoofing

References

  • exploit-db.com /exploits/44380 · exploit
  • vulncheck.com /advisories/tenda-w3002r-a302-w309r-64-en-cookie-session-weakness-dns-change · third-party-advisory

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.