VDB
DEBIAN-CVE-2021-44228
DEBIAN-CVE-2021-44228
PUBLISHED
CVSS 10 CRITICAL
Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. An attacker who can control log messages or log message parameters can execute arbitrary code loaded from LDAP servers when message lookup substitution is enabled. From log4j 2.15.0, this behavior has been disabled by default. From version 2.16.0 (along with 2.12.2, 2.12.3, and 2.3.1), this functionality has been completely removed. Note that this vulnerability is specific to log4j-core and does not affect log4net, log4cxx, or other Apache Logging Services projects.
Risk Scores
CVSS 3.1
10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | apache-log4j2 | 0, 0, 0 |
| Debian:13 | apache-log4j2 | 0, 0, 0 |
| Debian:11 | apache-log4j2 | 0, 2.13.3-1, 2.15.0-1 |
| Debian:12 | apache-log4j2 | 0, 0, 0 |
Exploit Intelligence
- Simple tool for scanning entire directories for attempts of CVE-2021-44228 (github-poc)
- Log4Shell (CVE-2021-44228) 보안 실습 환경 - Log4j 2.14.1 취약 로그 수집 서버 (github-poc-repo)
- Log4Shell (CVE-2021-44228) 보안 실습 환경 - Log4j 2.14.1 취약 로그 수집 서버 (github-poc)
- webapp vulnerable to CVE-2021-44228 (github-poc-repo)
- webapp vulnerable to CVE-2021-44228 (github-poc)
- sqsec/log4j2_CVE-2021-44228 (github-poc)
- CVE-2021-44228 漏洞复现完整记录（含环境搭建、触发验证） (github-poc-repo)
- CVE-2021-44228 漏洞复现完整记录（含环境搭建、触发验证） (github-poc)
- horrister/log4shell-cve-2021-44228 (github-poc-repo)
- horrister/log4shell-cve-2021-44228 (github-poc)
…and 593 more exploits
Timeline
- Dec 10, 2021 PoC Published
- Dec 10, 2021 CVE Published
- Apr 28, 2026 CVE Updated