Access Restriction Bypass Affecting ntop package, versions [3.4,3.4.180617)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Mature
EPSS
2.54% (90th percentile)

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  • Snyk IDSNYK-UNMANAGED-NTOP-2369553
  • published26 Jan 2022
  • disclosed5 Jul 2018
  • creditUnknown

Introduced: 5 Jul 2018

CVE-2018-12520  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade ntop to version 3.4.180617 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass. 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