PRNG Seed Error Affecting ntopng package, versions <3.8+dfsg1-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

Exploit Maturity
Mature
EPSS
2.54% (90th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-NTOPNG-312905
  • published11 Jul 2018
  • disclosed5 Jul 2018

Introduced: 5 Jul 2018

CVE-2018-12520  (opens in a new tab)
CWE-335  (opens in a new tab)

How to fix?

Upgrade Debian:unstable ntopng to version 3.8+dfsg1-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ntopng package and not the ntopng package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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 Scores

version 3.1