What is the CVSS score of CVE-2019-18848?

CVE-2019-18848 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 1.3%.

Is there a patch available for CVE-2019-18848?

Yes, a patch is available for CVE-2019-18848. Update the affected software to the latest version immediately.

Json Jwt CVE-2019-18848

HIGH

Improper Authentication (CWE-287)

2019-11-12 cve@mitre.org

Authentication Bypass Json Jwt Debian Linux

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Nov 12, 2019 - 15:15 nvd

HIGH 7.5

DescriptionNVD

The json-jwt gem before 1.11.0 for Ruby lacks an element count during the splitting of a JWE string.

AnalysisAI

The json-jwt gem before 1.11.0 for Ruby lacks an element count during the splitting of a JWE string. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Improper Authentication vulnerability could allow attackers to bypass authentication mechanisms to gain unauthorized access.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. The json-jwt gem before 1.11.0 for Ruby lacks an element count during the splitting of a JWE string. Affected products include: Json-Jwt Project Json-Jwt, Debian Debian Linux. Version information: before 1.11.0.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.