Vulnerability in Ntop Ntopng
CVE-2018-12520
An issue was discovered in ntopng 3.4 before 3.4.180617. The PRNG involved in the generation of session IDs is not seeded at program startup. This results in deterministic session IDs being allocated for active user sessions. An attacker with foreknowledge of the operating system and standard library in use by the host running the service and the username of the user whose session they're targeting can abuse the deterministic random number generation in order to hijack the user's session, thus escalating their access.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.105 (95.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.105 · newest: 0.105 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a (Patch)
- www.exploit-db.com/exploits/44973/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- seclists.org/fulldisclosure/2018/Jul/14 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f (Exploit)
Frequently asked questions
- What is CVE-2018-12520?
- CVE-2018-12520 is a high-severity vulnerability in Ntop Ntopng, classified under Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG). CVSS score: 8.1/10. Published 2018-07-05.
- How severe is CVE-2018-12520?
- High severity. CVSS v3 base score is 8.1 out of 10.