8.1
HIGH
CVE-2018-12520
"ntopng Predictable Session ID Generation Vulnerability"
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 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.

INFO

Published Date :

July 5, 2018, 8:29 p.m.

Last Modified :

Feb. 10, 2024, 3:01 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2018-12520 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Ntop ntopng
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-12520.

URL Resource
http://seclists.org/fulldisclosure/2018/Jul/14 Exploit Mailing List Third Party Advisory
https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f Exploit
https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a Patch
https://www.exploit-db.com/exploits/44973/ Exploit VDB Entry Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-12520 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-12520 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Feb. 10, 2024

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://seclists.org/fulldisclosure/2018/Jul/14 Mailing List, Third Party Advisory http://seclists.org/fulldisclosure/2018/Jul/14 Exploit, Mailing List, Third Party Advisory
    Changed Reference Type https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f Third Party Advisory https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f Exploit
    Changed Reference Type https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a Patch, Third Party Advisory https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a Patch
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-264 CWE-327 CWE-335
  • Initial Analysis by [email protected]

    Sep. 04, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f No Types Assigned https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f Third Party Advisory
    Changed Reference Type https://www.exploit-db.com/exploits/44973/ No Types Assigned https://www.exploit-db.com/exploits/44973/ Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type http://seclists.org/fulldisclosure/2018/Jul/14 No Types Assigned http://seclists.org/fulldisclosure/2018/Jul/14 Mailing List, Third Party Advisory
    Changed Reference Type https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a No Types Assigned https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a Patch, Third Party Advisory
    Added CWE CWE-264
    Added CPE Configuration OR *cpe:2.3:a:ntop:ntopng:*:*:*:*:*:*:*:* versions from (including) 3.4 up to (excluding) 3.4.180617
  • CVE Modified by [email protected]

    Jul. 07, 2018

    Action Type Old Value New Value
    Added Reference https://www.exploit-db.com/exploits/44973/ [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-12520 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-12520 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

5.16 }} -1.32%

score

0.92876

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability