Vulnerability Details : CVE-2021-41269
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.
Vulnerability category: Execute code
Products affected by CVE-2021-41269
- cpe:2.3:a:cron-utils_project:cron-utils:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-41269
5.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 93 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-41269
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST | |
10.0
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
3.9
|
6.0
|
GitHub, Inc. |
CWE ids for CVE-2021-41269
-
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.Assigned by: security-advisories@github.com (Primary)
References for CVE-2021-41269
-
https://github.com/jmrozanec/cron-utils/commit/d6707503ec2f20947f79e38f861dba93b39df9da
Merge pull request #493 from pwntester/patch-1 · jmrozanec/cron-utils@d670750 · GitHubPatch;Third Party Advisory
-
https://github.com/jmrozanec/cron-utils/issues/461
Fix security vulnerability regarding the Hibernate dependency. · Issue #461 · jmrozanec/cron-utils · GitHubExploit;Issue Tracking;Third Party Advisory
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https://github.com/jmrozanec/cron-utils/commit/cfd2880f80e62ea74b92fa83474c2aabdb9899da
Merge pull request #494 from NielsDoucet/RCE-fix · jmrozanec/cron-utils@cfd2880 · GitHubPatch;Third Party Advisory
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https://github.com/jmrozanec/cron-utils/security/advisories/GHSA-p9m8-27x8-rg87
Critical vulnerability found in cron-utils · Advisory · jmrozanec/cron-utils · GitHubThird Party Advisory
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