Vulnerability CVE-2019-17571
Published: 2019-12-20

Description:
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.

Type:

CWE-502

 (Deserialization of Untrusted Data)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Apache -> Log4j 

 References:
https://lists.apache.org/thread.html/277b4b5c2b0e06a825ccec565fa65bd671f35a4d58e3e2ec5d0618e1@%3Cdev.tika.apache.org%3E
https://lists.apache.org/thread.html/44491fb9cc19acc901f7cff34acb7376619f15638439416e3e14761c@%3Cdev.tika.apache.org%3E
https://lists.apache.org/thread.html/479471e6debd608c837b9815b76eab24676657d4444fcfd5ef96d6e6@%3Cdev.tika.apache.org%3E
https://lists.apache.org/thread.html/564f03b4e9511fcba29c68fc0299372dadbdb002718fa8edcc4325e4@%3Cjira.kafka.apache.org%3E
https://lists.apache.org/thread.html/6114ce566200d76e3cc45c521a62c2c5a4eac15738248f58a99f622c@%3Cissues.activemq.apache.org%3E
https://lists.apache.org/thread.html/752ec92cd1e334a639e79bfbd689a4ec2c6579ec5bb41b53ffdf358d@%3Cdev.kafka.apache.org%3E
https://lists.apache.org/thread.html/8ab32b4c9f1826f20add7c40be08909de9f58a89dc1de9c09953f5ac@%3Cissues.activemq.apache.org%3E
https://lists.apache.org/thread.html/eea03d504b36e8f870e8321d908e1def1addda16adda04327fe7c125%40%3Cdev.logging.apache.org%3E
https://lists.apache.org/thread.html/r05755112a8c164abc1004bb44f198b1e3d8ca3d546a8f13ebd3aa05f@%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/r189aaeaad897f7d6b96f7c43a8ef2dfb9f6e9f8c1cc9ad182ce9b9ae@%3Cjira.kafka.apache.org%3E
https://lists.apache.org/thread.html/r2756fd570b6709d55a61831ca028405bcb3e312175a60bc5d911c81f@%3Cjira.kafka.apache.org%3E
https://lists.apache.org/thread.html/r356d57d6225f91fdc30f8b0a2bed229d1ece55e16e552878c5fa809a@%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/r3a85514a518f3080ab1fc2652cfe122c2ccf67cfb32356acb1b08fe8@%3Cdev.tika.apache.org%3E
https://lists.apache.org/thread.html/r3c575cabc7386e646fb12cb82b0b38ae5a6ade8a800f827107824495@%3Cjira.kafka.apache.org%3E
https://lists.apache.org/thread.html/r681b4432d0605f327b68b9f8a42662993e699d04614de4851c35ffd1@%3Cdev.tika.apache.org%3E
https://lists.apache.org/thread.html/r6aec6b8f70167fa325fb98b3b5c9ce0ffaed026e697b69b85ac24628@%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/r746fbc3fc13aee292ae6851f7a5080f592fa3a67b983c6887cdb1fc5@%3Cdev.tika.apache.org%3E
https://lists.apache.org/thread.html/r8a1cfd4705258c106e488091fcec85f194c82f2bbde6bd151e201870@%3Cjira.kafka.apache.org%3E
https://lists.apache.org/thread.html/r944183c871594fe9a555b8519a7c945bbcf6714d72461aa6c929028f@%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/ra38785cfc0e7f17f8e24bebf775dd032c033fadcaea29e5bc9fffc60@%3Cdev.tika.apache.org%3E
https://lists.apache.org/thread.html/rbdf18e39428b5c80fc35113470198b1fe53b287a76a46b0f8780b5fd@%3Cdev.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/rc1eaed7f7d774d5d02f66e49baced31e04827a1293d61a70bd003ca7@%3Cdev.tika.apache.org%3E
https://lists.apache.org/thread.html/rc628307962ae1b8cc2d21b8e4b7dd6d7755b2dd52fa56a151a27e4fd@%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/rdec0d8ac1f03e6905b0de2df1d5fcdb98b94556e4f6cccf7519fdb26@%3Cdev.tika.apache.org%3E
https://lists.apache.org/thread.html/rf1b434e11834a4449cd7addb69ed0aef0923112b5938182b363a968c@%3Cnotifications.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/rf2567488cfc9212b42e34c6393cfa1c14e30e4838b98dda84d71041f@%3Cdev.tika.apache.org%3E
https://security.netapp.com/advisory/ntap-20200110-0001/
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