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.

CVSS v3.1

8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS

10.67% chance of exploitation in the next 30 days, 95th percentile

Published

2018-07-05

Updated

2024-08-05

Proof-of-concept exploits (1)

• http://seclists.org/fulldisclosure/2018/Jul/14

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/44973

References

• CVE Record
• NVD entry

Related

• CVE-2018-12519
• CVE-2018-12522
• CVE-2018-12495
• CVE-2018-12523
• CVE-2018-12494
• CVE-2018-12524