CVE-2018-12520
mediumpriority · attend · 46EPSS 0.105 · 96 %ileexploit · PoCEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–8.1
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
- EDB-44973ntop-ng < 3.4.180617 - Authentication BypassPoC · exploit_db
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (12)
External citations — patches, advisories, analysis.
- http://seclists.org/fulldisclosure/2018/Jul/14cnnvd
- https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7fcnnvd
- https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221acnnvd
- https://www.exploit-db.com/exploits/44973/cnnvd
- http://seclists.org/fulldisclosure/2018/Jul/14enisa_euvd
- https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7fenisa_euvd
- https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221aenisa_euvd
- https://www.exploit-db.com/exploits/44973/enisa_euvd
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