Buffer overflow in Tenda Fh1206
CVE-2024-42987
Tenda FH1206 v02.03.01.35 was discovered to contain a stack-based buffer overflow vulnerability in the fromPptpUserAdd function. The vulnerability can be triggered via the modino, username, newpwd, or pptpdnetseg parameters, all of which are passed via HTTP POST and used in unsafe sprintf calls without proper length validation. A remote attacker can exploit this flaw through a crafted POST request, which may cause a Denial of Service (DoS). In certain scenarios, this issue could potentially be leveraged to achieve remote code execution.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.013 (69.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Tenda Fh1206
- Tenda Fh1206 Firmware — versions v02.03.1.35
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/TTTJJJWWW/AHU-IoT-vulnerable/blob/main/Tenda/FH1206/fromPptpUserAdd… (Exploit, Third Party Advisory)
- github.com/laohouzju/PoC/blob/main/Tenda FH1206 fromPptpUserAdd_username.md
- github.com/laohouzju/PoC/blob/main/Tenda FH1206 fromPptpUserAdd_pptpdnetseg.md
- github.com/laohouzju/PoC/blob/main/Tenda FH1206 fromPptpUserAdd_newpwd.md
Frequently asked questions
- What is CVE-2024-42987?
- CVE-2024-42987 is a high-severity vulnerability in Tenda Fh1206, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2024-08-15.
- How severe is CVE-2024-42987?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-42987 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.