Where
AND
-Infinity
0
Severity
9.8
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

A deserialization flaw was found in Apache log4j 1.2.x. While reading serialized log events, they are improperly deserialized.

Note this is the same as CVE-2020-9493 which identified a deserialization issue in Apache Chainsaw. Prior to Chainsaw V2.0, Chainsaw was a component of Apache Log4j 1.2.x.

References:

https://www.openwall.com/lists/oss-security/2022/01/18/5

1 / 5
Source: Red Hat
First published (updated )
Severity
9.8
SQL Injection
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

A flaw was found in the Java logging library Apache Log4j in version 1.x. JDBCAppender in Log4j 1.x is vulnerable to SQL injection in untrusted data. This allows a remote attacker to run SQL statements in the database if the deployed application is configured to use JDBCAppender with certain interpolation tokens.

1 / 4
First published (updated )
Severity
9.8
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

A flaw was found in jackson-databind 2.x. FasterXML jackson-databind 2.x mishandles the interaction between serialization gadgets and typing. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

1 / 4
First published (updated )
Severity
9.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

A flaw was found in jackson-databind 2.x. FasterXML jackson-databind 2.x mishandles the interaction between serialization gadgets and typing. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

1 / 4
First published (updated )
Severity
9.8
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

A flaw was found in jackson-databind 2.x in versions prior to 2.9.10.4. FasterXML jackson-databind 2.x mishandles the interaction between serialization gadgets and typing. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

1 / 3
First published (updated )
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Severity
9.8
AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Apache Tomcat could allow a remote attacker to execute arbitrary code on the system, caused by a file read/inclusion vulnerability in the AJP connector. By sending a specially-crafted request, an attacker could exploit this vulnerability to read web application files from a vulnerable server and upload malicious JavaServer Pages (JSP) code within a variety of file types and execute arbitrary code on the system.

Note: This vulnerability is known as Ghostcat.

1 / 5
Source: IBM
First published (updated )
Severity
9.8
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

FasterXML jackson-databind 2.x before 2.6.7.4, 2.7.x before 2.7.9.7, 2.8.x before 2.8.11.5, and 2.9.x before 2.9.10.2 lacks certain net.sf.ehcache blocking.

1 / 3
Source: GitHub
First published (updated )
Severity
9.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

A flaw was discovered in FasterXML jackson-databind, where it would permit polymorphic deserialization of malicious objects using the ehcache and logback JNDI gadgets when used in conjunction with polymorphic type handling methods such as enableDefaultTyping() or when @JsonTypeInfo is using Id.CLASS or Id.MINIMALCLASS or in any other way which ObjectMapper.readValue might instantiate objects from unsafe sources. An attacker could use this flaw to execute arbitrary code.

1 / 5
First published (updated )
Severity
9.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

A vulnerability was found in FasterXML jackson-databind before versions 2.7.9.4, 2.8.11.2, 2.9.6. A new potential gadget type from MyBatis (https://github.com/mybatis/mybatis-3) has been reported. It may allow content exfiltration (remote access by sending contents over ftp) when untrusted content is deserialized with default typing enabled.

Upstream Bug: https://github.com/FasterXML/jackson-databind/issues/2032

References: https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.8

1 / 2
Source: Red Hat
First published (updated )
Severity
9.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

FasterXML jackson-databind 2.x before 2.9.7 might allow remote attackers to execute arbitrary code by leveraging failure to block the slf4j-ext class from polymorphic deserialization.

1 / 3
First published (updated )
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Severity
9.8
Input Validation
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

FasterXML jackson-databind before 2.7.9.3, 2.8.x before 2.8.11.1 and 2.9.x before 2.9.5 allows unauthenticated remote code execution because of an incomplete fix for the CVE-2017-7525 deserialization flaw. This is exploitable by sending maliciously crafted JSON input to the readValue method of the ObjectMapper, bypassing a blacklist that is ineffective if the c3p0 libraries are available in the classpath.

1 / 3
First published (updated )
Severity
9.8
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

A deserialization flaw was discovered in the jackson-databind in versions before 2.8.10 and 2.9.1, which could allow an unauthenticated user to perform code execution by sending the maliciously crafted input to the readValue method of the ObjectMapper. This issue extends the previous flaw CVE-2017-7525 by blacklisting more classes that could be used maliciously.

1 / 4

Remedy

Mitigation to this problem is to not trigger polymorphic desrialization globally by using: objectMapper.enableDefaultTyping() and rather use @JsonTypeInfo on the class property to explicitly define the type information. For more information on this issue please refer to https://www.github.com/mbechler/marshalsec/blob/master/marshalsec.pdf?raw=true
First published (updated )
Severity
9.8
Input Validation
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

A deserialization flaw in jackson-databind was found allowing code execution when given maliocusly crafted input to readValue method of ObjectMapper.

1 / 3
Source: Red Hat

Remedy

Mitigation to this problem is to not trigger polymorphic desrialization globally by using: objectMapper.enableDefaultTyping() and rather use @JsonTypeInfo on the class property to explicitly define the type information. For more information on this issue please refer to https://www.github.com/mbechler/marshalsec/blob/master/marshalsec.pdf?raw=true
First published (updated )
Severity
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

1 / 3
First published (updated )
Severity
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Apache Tomcat contains an unspecified vulnerability that allows for remote code execution if JmxRemoteLifecycleListener is used and an attacker can reach Java Management Extension (JMX) ports. This CVE exists because this listener wasn't updated for consistency with the Oracle patched issues for CVE-2016-3427 which affected credential types.

1 / 5
Source: CISA
First published (updated )
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