CVE-2018-12520
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…
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EPSS puts the probability of exploitation in the next 30 days at 10.5%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
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 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 10.54% probability · 96th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-335
- Affected
- ntop/ntopng
- Source
- cve@mitre.org
References
- http://seclists.org/fulldisclosure/2018/Jul/14Exploit, Mailing List, Third Party Advisory
- https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7fExploit
- https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221aPatch
- https://www.exploit-db.com/exploits/44973/Exploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2018/Jul/14Exploit, Mailing List, Third Party Advisory
- https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7fExploit
- https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221aPatch
- https://www.exploit-db.com/exploits/44973/Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.