VDB
CVE-2018-12520
CVE-2018-12520
PUBLISHED
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.
EPSS 5.83% · 90.7th percentile
Risk Scores
EPSS Score
5.83%
90.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:18.04:LTS | ntopng | 0, 2.4+dfsg1-3, 2.4+dfsg1-4 |
| Ubuntu:Pro:16.04:LTS | ntopng | 0, 1.2.1+dfsg1-2ubuntu1, 2.0+dfsg1-1 |
Exploit Intelligence
- http://seclists.org/fulldisclosure/2018/Jul/14 (nist-nvd)
- https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f (nist-nvd)
- https://www.exploit-db.com/exploits/44973/ (nist-nvd)
- https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a (circl)
- ET SCAN ntop-ng Authentication Bypass via Session ID Guessing (emergingthreats)
- ET SCAN ntop-ng Authentication Bypass via Session ID Guessing (emergingthreats)
- ntop-ng Authentication Bypass Vulnerability (0day-today)
- ntop-ng Authentication Bypass Vulnerability (0day-today)
Timeline
- Jul 3, 2018 PoC Published
- Jul 3, 2018 PoC Published
- Jul 5, 2018 CVE Published
- Apr 14, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Sep 5, 2022 EPSS Score
- Jan 8, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- Apr 25, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2018-12520 third-party-advisory
- http://seclists.org/fulldisclosure/2018/Jul/14 third-party-advisory
- https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f third-party-advisory
- https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a third-party-advisory
- https://ubuntu.com/security/notices/USN-4842-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2018-12520 third-party-advisory