Is CVE-2018-12520 in the CISA KEV catalog?

No. CVE-2018-12520 is not currently on the CISA Known Exploited Vulnerabilities list.

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

CVE-2018-12520 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2018-12520?

CVE-2018-12520 has an EPSS score of 10.67% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-12520?

Upgrade ntopng on ubuntu 16.04 to 2.2+dfsg1-1ubuntu0.1~esm2 or later.

CVE & CISA-KEV Catalog

CVE-2018-12520

HIGHEPSS 95th pctl

8.1

CVSS v3

NVD

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.

CWE-335

How to fix

Remediation Available

ntopngUbuntu

Fixed in:2.2+dfsg1-1ubuntu0.1~esm2USN-4842-1

Fixed in:3.2+dfsg1-1ubuntu0.1~esm2USN-4842-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

10.67%probability of exploitation in 30 days

95thpercentile

Very high risk: more likely to be exploited than 95% of all known CVEs.

References

Patch1

github.com

Exploit3

Related Vulnerabilities

Other CWE-335 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2018-14647	High	7.5	11%	-	Fix
CVE-2016-10180	High	7.5	4.4%	-	-
CVE-2021-27211	High	7.5	3.3%	-	-
CVE-2017-11519	Critical	9.8	3.1%	-	-
CVE-2021-41117	High	8.7	3.0%	-	Fix
CVE-2018-1426	High	7.4	2.5%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.