What is the CVE for Log4Shell
2021 was a busy year for zero-day vulnerabilities capped off by Log4Shell, a critical flaw found in the widely used Java-based logging library, Apache Log4j. Officially identified as CVE-2021-44228, it carries a severity score of 10 out of 10 (CVSS v3. 1) from the Common Vulnerability Scoring System (CVSS).
What type of vulnerability is Log4Shell
Log4Shell is a software vulnerability in Apache Log4j 2, a popular Java library for logging error messages in applications. The vulnerability, published as CVE-2021-44228, enables a remote attacker to take control of a device on the internet if the device is running certain versions of Log4j 2.
What is the CVE code for Log4j vulnerability
CVE-2021-44228
CVE-2021-44228: Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints. Log4j2 allows Lookup expressions in the data being logged exposing the JNDI vulnerability, as well as other problems, to be exploited by end users whose input is being logged.
What is the CVSS rating of Log4Shell
10
Apache gave Log4Shell a CVSS severity rating of 10, the highest available score. The exploit was simple to execute and is estimated to have had the potential to affect hundreds of millions of devices.
Is Log4j the same as Log4Shell
The original Apache Log4j vulnerability (CVE-2021-44228), also known as Log4Shell, is a cybersecurity vulnerability on the Apache Log4j 2 Java library. This security flaw is a Remote Code Execution vulnerability (RCE) – one of the most critical security exposures.
What is the vulnerability of Log4j 1.2 17
Included in Log4j 1.2 is a SocketServer class that is vulnerable to deserialization of untrusted data which can be exploited to remotely execute arbitrary code when combined with a deserialization gadget when listening to untrusted network traffic for log data.
What is Log4j vulnerability classification
Log4j is a software library built in Java that's used by millions of computers worldwide running online services. It's described as a zero-day (0 day) vulnerability and rated the highest severity under the Common Vulnerability Scoring System (CVSS; CVE-2021-44228).
Which Log4j versions are vulnerable to Log4Shell
Log4Shell, disclosed on December 10, 2021, is a remote code execution (RCE) vulnerability affecting Apache's Log4j library, versions 2.0-beta9 to 2.14. 1. The vulnerability exists in the action the Java Naming and Directory Interface (JNDI) takes to resolve variables.
Does Log4j 1.2 17 have vulnerability
Included in Log4j 1.2 is a SocketServer class that is vulnerable to deserialization of untrusted data which can be exploited to remotely execute arbitrary code when combined with a deserialization gadget when listening to untrusted network traffic for log data.
Is Log4j 2.17 0 vulnerable
TL;DR – The latest vulnerabilities found in Log4j 2.17. 0 are much less serious than the hype would suggest. Continue to patch your systems to at least Log4j 2.17. 0 (Java 8) or 2.12.
What is CVE vs CVSS score
The CVE represents a summarized vulnerability, while the Common Vulnerability Scoring System (CVSS) assesses the vulnerability in detail and scores it, based on several factors.
Is CVSS the same as CVE
Differences between CVSS and CVE
CVSS is the overall score assigned to a vulnerability. CVE is simply a list of all publicly disclosed vulnerabilities that includes the CVE ID, a description, dates, and comments. The CVSS score is not reported in the CVE listing – you must use the NVD to find assigned CVSS scores.
Which versions of Log4j are affected by Log4Shell
Log4Shell, disclosed on December 10, 2021, is a remote code execution (RCE) vulnerability affecting Apache's Log4j library, versions 2.0-beta9 to 2.14. 1. The vulnerability exists in the action the Java Naming and Directory Interface (JNDI) takes to resolve variables.
Is Log4j 1.2 17 jar affected
Included in Log4j 1.2 is a SocketServer class that is vulnerable to deserialization of untrusted data which can be exploited to remotely execute arbitrary code when combined with a deserialization gadget when listening to untrusted network traffic for log data. This affects Log4j versions up to 1.2 up to 1.2. 17.
Is Log4j 1.2 affected by vulnerability
JMSAppender, in log4j 1.2 version, is vulnerable to deserialization of untrusted data if the attacker has the 'write' permissions to the log4j configuration.
Does Log4j 1.2 14 have vulnerability
Affected versions of this package are vulnerable to Deserialization of Untrusted Data. JMSSink in all versions of Log4j 1. x is vulnerable to deserialization of untrusted data when the attacker has write access to the Log4j configuration or if the configuration references an LDAP service the attacker has access to.
Are Log4Shell and Log4j the same
The original Apache Log4j vulnerability (CVE-2021-44228), also known as Log4Shell, is a cybersecurity vulnerability on the Apache Log4j 2 Java library. This security flaw is a Remote Code Execution vulnerability (RCE) – one of the most critical security exposures.
Is Log4j 2.7 vulnerable
log4j:log4j-core is a logging library for Java. Affected versions of this package are vulnerable to Remote Code Execution (RCE). Apache Log4j2 JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints.
Does CVE use CVSS
CVE is a glossary that classifies vulnerabilities. The glossary analyzes vulnerabilities and then uses the Common Vulnerability Scoring System (CVSS) to evaluate the threat level of a vulnerability.
Do all vulnerabilities have a CVE
CVE stands for Common Vulnerabilities and Exposures. It is the database of publicly disclosed information on security issues. All organizations use CVEs to identify and track the number of vulnerabilities. But not all the vulnerabilities discovered have a CVE number.
What is the CVE of the log4j vulnerability with the highest CVSS score
CVE-2021-44228
It's described as a zero-day (0 day) vulnerability and rated the highest severity under the Common Vulnerability Scoring System (CVSS; CVE-2021-44228). It was rated a 10 out of 10 on the CVSS, due to the potential impact that it can have if leveraged by attackers.
What is CVSS and CVSS v3
CVSS is composed of three metric groups, Base, Temporal, and Environmental, each consisting of a set of metrics, as shown in Figure 1. Figure 1: CVSS v3.0 Metric Groups. The Base metric group represents the intrinsic characteristics of a vulnerability that are constant over time and across user environments.
What software is affected by Log4j vulnerability
List of vendors and software affected by the Apache Log4J vulnerability (CVE-2021-44228)
| # | Vendor | Software |
|---|---|---|
| 4 | Amazon Web Services | Amazon Linux AMI |
| 5 | Apache Foundation | Apache Spark |
| 6 | Apache Foundation | Apache Tapestry |
| 7 | Apache Foundation | Apache Nifi |
Does log4j 1.2 14 have vulnerability
Affected versions of this package are vulnerable to Deserialization of Untrusted Data. JMSSink in all versions of Log4j 1. x is vulnerable to deserialization of untrusted data when the attacker has write access to the Log4j configuration or if the configuration references an LDAP service the attacker has access to.
Which versions of log4j are affected by Log4Shell
Log4Shell, disclosed on December 10, 2021, is a remote code execution (RCE) vulnerability affecting Apache's Log4j library, versions 2.0-beta9 to 2.14. 1. The vulnerability exists in the action the Java Naming and Directory Interface (JNDI) takes to resolve variables.
