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I. Basic Information for CVE-2021-41269
Vulnerability Information

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Vulnerability Title
Unauthenticated remote code injection in cron-utils
Source: NVD (National Vulnerability Database)
Vulnerability Description
cron-utils is a Java library to define, parse, validate, migrate crons as well as get human readable descriptions for them. In affected versions A template Injection was identified in cron-utils enabling attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. Versions up to 9.1.2 are susceptible to this vulnerability. Please note, that only projects using the @Cron annotation to validate untrusted Cron expressions are affected. The issue was patched and a new version was released. Please upgrade to version 9.1.6. There are no known workarounds known.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cron Utils 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cron Utils是Jmrozanec个人开发者的一个用于验证、解析、迁移 Cron 表达式的Java代码库。 Cron Utils 存在代码注入漏洞,攻击者能够注入任意Java EL表达式来执行远程代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
jmrozaneccron-utils < 9.1.6 -
II. Public POCs for CVE-2021-41269
#POC DescriptionSource LinkShenlong Link
1Nonehttps://github.com/shoucheng3/jmrozanec__cron-utils_CVE-2021-41269_9-1-5POC Details
2Nonehttps://github.com/andikahilmy/CVE-2021-41269-cron-utils-vulnerablePOC Details
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III. Intelligence Information for CVE-2021-41269
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IV. Related Vulnerabilities
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