ID CVE-2015-3248
Summary openhpi/ in OpenHPI before 3.6.0 uses world-writable permissions for /var/lib/openhpi directory, which allows local users, when quotas are not properly setup, to fill the filesystem hosting /var/lib and cause a denial of service (disk consumption).
Vulnerable Configurations
  • cpe:2.3:a:openhpi:openhpi:3.5.0:*:*:*:*:*:*:*
Base: 4.7 (as of 10-10-2017 - 14:55)
  • XML Entity Expansion
    An attacker submits an XML document to a target application where the XML document uses nested entity expansion to produce an excessively large output XML. XML allows the definition of macro-like structures that can be used to simplify the creation of complex structures. However, this capability can be abused to create excessive demands on a processor's CPU and memory. A small number of nested expansions can result in an exponential growth in demands on memory.
  • Regular Expression Exponential Blowup
    An adversary may execute an attack on a program that uses a poor Regular Expression(Regex) implementation by choosing input that results in an extreme situation for the Regex. A typical extreme situation operates at exponential time compared to the input size. This is due to most implementations using a Nondeterministic Finite Automaton(NFA) state machine to be built by the Regex algorithm since NFA allows backtracking and thus more complex regular expressions. The algorithm builds a finite state machine and based on the input transitions through all the states until the end of the input is reached. NFA engines may evaluate each character in the input string multiple times during the backtracking. The algorithm tries each path through the NFA one by one until a match is found; the malicious input is crafted so every path is tried which results in a failure. Exploitation of the Regex results in programs hanging or taking a very long time to complete. These attacks may target various layers of the Internet due to regular expressions being used in validation.
  • XML Ping of the Death
    An attacker initiates a resource depletion attack where a large number of small XML messages are delivered at a sufficiently rapid rate to cause a denial of service or crash of the target. Transactions such as repetitive SOAP transactions can deplete resources faster than a simple flooding attack because of the additional resources used by the SOAP protocol and the resources necessary to process SOAP messages. The transactions used are immaterial as long as they cause resource utilization on the target. In other words, this is a normal flooding attack augmented by using messages that will require extra processing on the target.
cvss-vector via4 AV:L/AC:M/Au:N/C:N/I:N/A:C
redhat via4
id 1233520
title CVE-2015-3248 openhpi: world writable /var/lib/openhpi directory
  • comment Red Hat Enterprise Linux must be installed
    oval oval:com.redhat.rhba:tst:20070304026
  • AND
    • comment Red Hat Enterprise Linux 7 is installed
      oval oval:com.redhat.rhba:tst:20150364027
    • OR
      • AND
        • comment openhpi is earlier than 0:3.4.0-2.el7
          oval oval:com.redhat.rhsa:tst:20152369001
        • comment openhpi is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20152369002
      • AND
        • comment openhpi-devel is earlier than 0:3.4.0-2.el7
          oval oval:com.redhat.rhsa:tst:20152369003
        • comment openhpi-devel is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20152369004
      • AND
        • comment openhpi-libs is earlier than 0:3.4.0-2.el7
          oval oval:com.redhat.rhsa:tst:20152369005
        • comment openhpi-libs is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20152369006
id RHSA-2015:2369
released 2015-11-19
severity Low
title RHSA-2015:2369: openhpi security, bug fix, and enhancement update (Low)
  • openhpi-0:3.4.0-2.el7
  • openhpi-debuginfo-0:3.4.0-2.el7
  • openhpi-devel-0:3.4.0-2.el7
  • openhpi-libs-0:3.4.0-2.el7
refmap via4
fedora FEDORA-2015-10944
Last major update 10-10-2017 - 14:55
Published 26-09-2017 - 15:29
Last modified 10-10-2017 - 14:55
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