CVE-2018-12520

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    CVE-2018-12520

    Published: 5 Jul 2018Last Modified: 8 Jul 2026

    Summary:

    Details: 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.

    References: https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a, http://seclists.org/fulldisclosure/2018/Jul/14, https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f, https://www.exploit-db.com/exploits/44973/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -30610bda60cbfc058f90a1c0a17d0e8f4516221a

    Affected versions

    3.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High