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Product log4j-core✕
Overview 6 matches · 5 exploited · 2 CISA KEV · 4 public PoC · 5 EPSS ≥ 0.5
6matches 5exploited83.3% 2CISA KEV33.3% 4public PoC66.7% 5EPSS ≥ 0.583.3%
Protected by Waratek 6 100.0% Rule in development 0 0.0% Mitigation candidate 0 0.0% No exploit published 0 0.0%
Critical 3 50.0% High 1 16.7% Medium 2 33.3% Low 0 0.0% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 6 100.0% partly blocked 0 0.0% not blocked 0 0.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 5 83.3% Working exploit published 1 16.7% Proof of concept only 0 0.0% Forecast only 0 0.0% No public exploit 0 0.0%
split by peak 4 / quarter
Protected by Waratek: 6 Medium: 2High: 1Critical: 3 blocked by ARMR today: 6 Working exploit published: 1Exploited: 5
Q2 171 Protected by Waratek1 Critical1 blocked by ARMR today1 Working exploit published1 Q3 170 Q4 170 Q1 180 Q2 180 Q3 180 Q4 180 Q1 190 Q2 190 Q3 190 Q4 190 Q1 200 Q2 200 Q3 200 Q4 200 Q1 210 Q2 210 Q3 210 Q4 214 Protected by Waratek4 Critical2 Medium2 blocked by ARMR today4 Exploited4 Q1 220 Q2 220 Q3 220 Q4 220 Q1 231 Protected by Waratek1 High1 blocked by ARMR today1 Exploited1
Q3 17Q1 18Q3 18Q1 19Q3 19Q1 20Q3 20Q1 21Q3 21Q1 22Q3 22Q1 23
6 matches Sign in to download these CVEs as CSV or JSON, or to follow them in a feed.
CVE Severity Published▾ Status Exploitation Description
CVE-2023-26464 High 2023-03-10 Protected by Waratek Exploited ** UNSUPPORTED WHEN ASSIGNED ** When using the Chainsaw or SocketAppender components with Log4j 1.x on JRE less than 1.7, an attacker that manages to cause a logging entry involving a specially-crafted (ie, deeply nested) hashmap or hashtable (depending on which logging component is in use) to be processed could exhaust the available memory in the virtual machine and achieve Denial of Service when the object is deserialized. This issue affects Apache Log4j before 2. Affected users are recommended to update to Log4j 2.x. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
CVE-2021-44832 Medium 2021-12-28 Protected by Waratek Exploited Apache Log4j2 versions 2.0-beta7 through 2.17.0 (excluding security fix releases 2.3.2 and 2.12.4) are vulnerable to a remote code execution (RCE) attack when a configuration uses a JDBC Appender with a JNDI LDAP data source URI when an attacker has control of the target LDAP server. This issue is fixed by limiting JNDI data source names to the java protocol in Log4j2 versions 2.17.1, 2.12.4, and 2.3.2.
CVE-2021-45105 Medium 2021-12-18 Protected by Waratek Exploited Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue was fixed in Log4j 2.17.0, 2.12.3, and 2.3.1.
CVE-2021-45046 Critical 2021-12-14 Protected by Waratek Exploited It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Context Map (MDC) input data when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default.
CVE-2021-44228 Critical 2021-12-10 Protected by Waratek Exploited 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.
CVE-2017-5645 Critical 2017-04-17 Protected by Waratek Working exploit published In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.