What is the CVSS score of CVE-2018-12520?

CVE-2018-12520 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 10.7%.

Is there a public PoC exploit available for CVE-2018-12520?

Yes, a public proof-of-concept exploit is available for CVE-2018-12520. Prioritise patching immediately. EPSS: 10.7%.

Is there a patch available for CVE-2018-12520?

Yes, a patch is available for CVE-2018-12520. Update the affected software to the latest version immediately.

Ntopng CVE-2018-12520

HIGH

Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG) (CWE-335)

2018-07-05 cve@mitre.org

Privilege Escalation Ntopng

8.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.1 HIGH

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jul 05, 2018 - 20:29 nvd

HIGH 8.1

DescriptionNVD

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.

AnalysisAI

An issue was discovered in ntopng 3.4 before 3.4.180617. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-335. 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. Affected products include: Ntop Ntopng. Version information: before 3.4.180617..

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.