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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 10.54% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 95.4% of scored records. A rank, not a probability.
- NVD base score
- 8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-07-05 20:00Z8 YR AGO
- Last updated
- 2024-08-05 08:38Z2 YR AGO
- Reserved
- 2018-06-17
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-335Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)Base
- Data version
- 5.1
- Document digest
- 4b1f2776af951c3a64bda91ce04242bbba808af8461cbadba6cb449a8dec3474
05 Affected products
06 References
- github.comhttps://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a
- www.exploit-db.com44973https://www.exploit-db.com/exploits/44973/
- seclists.org20180702 ntop-ng < 3.4.180617 - Authentication bypass / session hijackinghttp://seclists.org/fulldisclosure/2018/Jul/14
- gist.github.comhttps://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f
07 Fixed in
Ubuntu Pro 16.04 LTS
- ntopng Fixed in 2.2+dfsg1-1ubuntu0.1~esm2Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- ntopng Fixed in 3.2+dfsg1-1ubuntu0.1~esm2Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.