[SECURITY] CVE-2018-1284: Hive UDF series UDFXPathXXXX allow users to pass carefully crafted XML to access arbitrary files

[SECURITY] CVE-2018-1284: Hive UDF series UDFXPathXXXX allow users to pass carefully crafted XML to access arbitrary files

Xpath, The, Hive, Apache, Udf, Use, Java, Doas, Enable, Udfs, Branch, Org, Users, Udfxpathutil, Xml, Are, User, False, West, Repos, Https, Head

CVE-2018-1284: Hive UDF series UDFXPathXXXX allow users to passcarefully crafted XML to access arbitrary filesSeverity:


CVE-2018-1284: Hive UDF series UDFXPathXXXX allow users to pass
carefully crafted XML to access arbitrary files
Severity: Important
Vendor: The Apache Software Foundation
Versions Affected: This vulnerability affects all versions from 0.6.0
Description: Malicious user might use any xpath UDFs
(xpath/xpath_string/xpath_boolean/xpath_number/xpath_double/xpath_float/xpath_long/xpath_int/xpath_short)
to expose the content of a file on the machine running HiveServer2
owned by HiveServer2 user (usually hive) if
hive.server2.enable.doAs=false.
Mitigation: Users who use xpath UDFs in HiveServer2 and
hive.server2.enable.doAs=false are recommended to upgrade to 2.3.3, or
update UDFXPathUtil.java to the head of branch-2.3 and rebuild
hive-exec.jar: https://git1-us-west.apache.org/repos/asf?p=hive.git;a=blob;f=ql/src/java/org/apache/hadoop/hive/ql/udf/xml/UDFXPathUtil.java;hb=refs/heads/branch-2.3.
If these functions are not being used at present, you can also
disable its use by adding them to the value of the config
hive.server2.builtin.udf.blacklist.

Zdroj: Apache

2018-04-05 00:06:09 1393 342Facebook | Twitter | Google+ | LinkedIn
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