Lodash
CVE-2019-10744
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V3 - Web Frontend Security Prototype pollution prevention
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 9.1 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A remote attacker could modify object prototypes to inject properties affecting application logic by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
Versions of lodash lower than 4.17.12 are vulnerable to Prototype Pollution. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Freeze prototypes, validate object keys, avoid recursive merging of untrusted data.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 5 packages in npm, rubygems
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution) (CWE-1321), which allows attackers to modify object prototypes to inject properties affecting application logic. Versions of lodash lower than 4.17.12 are vulnerable to Prototype Pollution. The function defaultsDeep could be tricked into adding or modifying properties of Object.prototype using a constructor payload. Affected products include: Lodash, Netapp Active Iq Unified Manager, Netapp Service Level Manager, Redhat Virtualization Manager, Oracle Banking Extensibility Workbench.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
Versions of lodash lower than 4.17.12 are vulnerable to Prototype Pollution. The function defaultsDeep could be tricked into adding or modifying properties of Object.prototype using a constructor payload.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Affected Products (CPE)NVD
Lodash versions prior to 4.17.21 are vulnerable to Command Injection via the template function. Rated high severity (CVS
Server-side code injection in Lodash's _.template function (lodash, lodash-es, lodash-amd and lodash.template, versions
Lodash versions up to 4.17.22 is affected by improperly controlled modification of object prototype attributes (prototyp
Prototype pollution attack when using _.zipObjectDeep in lodash before 4.17.20. Rated high severity (CVSS 7.4), this vul
lodash prior to 4.17.11 is affected by: CWE-400: Uncontrolled Resource Consumption. Rated medium severity (CVSS 6.5), th
lodash node module before 4.17.5 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability via defaults
Prototype pollution in Lodash 4.17.23 and earlier allows unauthenticated remote attackers to delete properties from buil
NVD
CVE.org
EPSS
GitHub PoC
Exploit-DB