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Computer vulnerabilities of IBM WebSphere ESB

cybersecurity note CVE-2014-0114

Apache Struts 1: code execution via ClassLoader

Synthesis of the vulnerability

An attacker can use the "class" parameter, to manipulate the ClassLoader, in order to execute code.
Severity: 3/4.
Creation date: 26/05/2014.
Identifiers: 1672316, 1673982, 1674339, 1675822, 2016214, c04399728, c05324755, CERTFR-2014-AVI-382, cpuapr2017, cpujan2018, cpujan2019, cpuoct2017, cpuoct2018, CVE-2014-0114, DSA-2940-1, ESA-2014-080, FEDORA-2014-9380, HPSBGN03669, HPSBMU03090, ibm10719287, ibm10719297, ibm10719301, ibm10719303, ibm10719307, MDVSA-2014:095, RHSA-2014:0474-01, RHSA-2014:0497-01, RHSA-2014:0500-01, RHSA-2014:0511-01, RHSA-2018:2669-01, SOL15282, SUSE-SU-2014:0902-1, swg22017525, VIGILANCE-VUL-14799, VMSA-2014-0008, VMSA-2014-0008.1, VMSA-2014-0008.2, VMSA-2014-0012.
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Description of the vulnerability

The Apache Struts product is used to develop Java EE applications.

However, the "class" parameter is mapped to getClass(), and can be used to manipulate the ClassLoader.

An attacker can therefore use the "class" parameter, to manipulate the ClassLoader, in order to execute code.
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computer vulnerability alert CVE-2012-5783

Apache HttpClient 3: incomplete certificate validation

Synthesis of the vulnerability

An attacker can use any valid certificate on a malicious server, and then invite an Apache HttpClient 3 to connect there, in order to spy communications even if encryption is used.
Severity: 2/4.
Creation date: 23/11/2012.
Identifiers: 2016216, BID-58073, CVE-2012-5783, FEDORA-2013-1189, FEDORA-2013-1203, FEDORA-2013-1289, HTTPCLIENT-1265, ibm10719287, ibm10719297, ibm10719301, ibm10719303, ibm10719307, openSUSE-SU-2013:0354-1, openSUSE-SU-2013:0622-1, openSUSE-SU-2013:0623-1, openSUSE-SU-2013:0638-1, RHSA-2013:0270-01, RHSA-2013:0679-01, RHSA-2013:0680-01, RHSA-2013:0681-01, RHSA-2013:0682-01, RHSA-2013:0763-01, RHSA-2013:1006-01, RHSA-2013:1147-01, RHSA-2013:1853-01, RHSA-2014:0224-01, RHSA-2017:0868-01, swg22017526, USN-2769-1, VIGILANCE-VUL-12182.
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Description of the vulnerability

The HttpClient library can manage HTTP connections over SSL.

In order to authenticate a server, the client must check the certificate (cryptographic signatures, validity date range, etc.) and also that the received certificate matches the visited server. This check is usually done on DNS names, or sometimes on IP addresses. However, HttpClient does not check that the names included in the certificates match the one requested at HTTP level. So, any valid certificate is accepted.

An attacker can therefore use any valid certificate on a malicious server, and then invite an Apache HttpClient 3 to connect there, in order to spy communications even if encryption is used.
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