is-user-valid ldap injection

entryeditHistoryDiffjsonxmlCTI
CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5$0-$5k0.00

A vulnerability classified as critical was found in is-user-valid (affected version unknown). Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-90. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

All versions of package is-user-valid are vulnerable to LDAP Injection which can lead to either authentication bypass or information exposure.

The weakness was disclosed 02/11/2021 as SNYK-JS-ISUSERVALID-1056766. The advisory is shared at snyk.io. This vulnerability is known as CVE-2021-23335 since 01/08/2021. Access to the local network is required for this attack to succeed. Required for exploitation is a single authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/28/2021).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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CVSSv3infoedit

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2infoedit

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

NVD Base Score: 🔒

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-90
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍

Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

01/08/2021 CVE assigned
02/11/2021 +34 days Advisory disclosed
02/11/2021 +0 days VulDB entry created
02/28/2021 +17 days VulDB last update

Sourcesinfoedit

Advisory: SNYK-JS-ISUSERVALID-1056766
Status: Not defined

CVE: CVE-2021-23335 (🔒)

Entryinfoedit

Created: 02/11/2021 03:48 PM
Updated: 02/28/2021 09:11 AM
Changes: (8) vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai source_cve_cna vulnerability_cvss2_nvd_basescore
Complete: 🔍

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