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CVE-2018-25317 โ€” AI Deep Analysis Summary

CVSS 9.8 ยท Critical

Q1What is this vulnerability? (Essence + Consequences)

๐Ÿšจ **Essence**: A critical session weakness in Tenda W3002R routers. ๐Ÿ“‰ **Consequences**: Attackers can hijack DNS settings, redirecting all user traffic to malicious servers.โ€ฆ

Q2Root Cause? (CWE/Flaw)

๐Ÿ›ก๏ธ **Root Cause**: **CWE-290** (Authentication Bypass via Spoofing). The flaw lies in **Cookie Session Weakness**.โ€ฆ

Q3Who is affected? (Versions/Components)

๐Ÿ“ฆ **Affected Product**: **Tenda W3002R** Wireless Router. ๐ŸŒ **Context**: Specifically targets the V5.07.64_en firmware version mentioned in advisories. It is a consumer-grade device by Tenda.

Q4What can hackers do? (Privileges/Data)

๐Ÿ’€ **Attacker Actions**: Modify **Primary & Secondary DNS** servers. ๐Ÿ”„ **Impact**: Redirects victim traffic to attacker-controlled malicious DNS.โ€ฆ

Q5Is exploitation threshold high? (Auth/Config)

๐Ÿ”“ **Threshold**: **VERY LOW**. โšก **Auth**: **None required** (Unauthenticated). ๐Ÿ–ฑ๏ธ **UI**: **None required** (No user interaction). ๐ŸŒ **Access**: **Network** (Remote). This is a remote, zero-touch exploit.

Q6Is there a public Exp? (PoC/Wild Exploitation)

๐Ÿ’ฃ **Public Exploit**: **YES**. ๐Ÿ“‚ **Reference**: ExploitDB ID **44380** is available. ๐Ÿ“ข **Advisory**: VulnCheck has published detailed advisories. Wild exploitation is highly likely given the ease of access.

Q7How to self-check? (Features/Scanning)

๐Ÿ” **Self-Check**: Scan for the **/goform/AdvSetDns** endpoint. ๐Ÿช **Indicator**: Look for requests sending a crafted **admin language cookie**.โ€ฆ

Q8Is it fixed officially? (Patch/Mitigation)

๐Ÿฉน **Official Fix**: The data indicates a published date of **2026-04-29**, suggesting this is a future-dated or simulated advisory in this context.โ€ฆ

Q9What if no patch? (Workaround)

๐Ÿšง **No Patch Workaround**: **Isolate** the device. ๐Ÿšซ **Block**: Restrict access to the router's management interface from untrusted networks.โ€ฆ

Q10Is it urgent? (Priority Suggestion)

๐Ÿ”ฅ **Urgency**: **CRITICAL**. ๐Ÿšจ **Priority**: **P0**. With CVSS 9.8 and no authentication required, this is an immediate threat. Patch immediately or disconnect from the internet to prevent DNS hijacking.