Otkrivena su i ispravljena dva sigurnosna propusta vezana uz JBoss Enterprise Web Platform. Spomenute nedostatke udaljeni napadač mogao je iskoristiti za narušavanje integriteta, dostupnosti i povjerljivosti sustava i podataka.
Paket:
JBoss Enterprise Web Platform 5.x
Operacijski sustavi:
Red Hat Enterprise Linux 4, Red Hat Enterprise Linux 5, Red Hat Enterprise Linux 6
Kritičnost:
5
Problem:
neodgovarajuća provjera ulaznih podataka, pogreška u programskoj komponenti
Iskorištavanje:
udaljeno
Posljedica:
dobivanje većih privilegija, uskraćivanje usluga (DoS), zaobilaženje postavljenih ograničenja
Rješenje:
programska zakrpa proizvođača
CVE:
CVE-2011-4605, CVE-2012-1167
Izvorni ID preporuke:
RHSA-2012:1027-01
Izvor:
Red Hat
Problem:
Propusti su posljedica pogrešaka u komponentama JaccAuthorizationRealm te JBoss JNDI.
Posljedica:
Udaljeni napadač može iskoristiti navedene propuste za dodavanje, brisanje i izmjenu podataka u JNDI stablu te za zaobilaženje postavljenih ograničenja.
Rješenje:
Kako bi se zaštitili, korisnicima se savjetuje korištenje odgovarajuće nadogradnje.
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Red Hat Security Advisory
Synopsis: Important: jbossas-web and jboss-naming security update
Advisory ID: RHSA-2012:1027-01
Product: JBoss Enterprise Web Platform
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1027.html
Issue date: 2012-06-20
CVE Names: CVE-2011-4605 CVE-2012-1167
=====================================================================
1. Summary:
Updated jbossas-web and jboss-naming packages that fix two security issues
are now available for JBoss Enterprise Web Platform 5.1.2 for Red Hat
Enterprise Linux 4, 5, and 6.
The Red Hat Security Response Team has rated this update as having
important security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.
2. Relevant releases/architectures:
JBoss Enterprise Web Platform 5 for RHEL 4 AS - noarch
JBoss Enterprise Web Platform 5 for RHEL 4 ES - noarch
JBoss Enterprise Web Platform 5 for RHEL 5 Server - noarch
JBoss Enterprise Web Platform 5 for RHEL 6 Server - noarch
3. Description:
JBoss Application Server is the base package for JBoss Enterprise Web
Platform, providing the core server components. The Java Naming and
Directory Interface (JNDI) Java API allows Java software clients to locate
objects or services in an application server. The Java Authorization
Contract for Containers (Java ACC) specification defines Permission classes
and the binding of container access decisions to operations on instances of
these permission classes. JaccAuthorizationRealm performs authorization
based on Java ACC permissions and a Policy implementation.
It was found that the JBoss JNDI service allowed unauthenticated, remote
write access by default. The JNDI and HA-JNDI services, and the
HAJNDIFactory invoker servlet were all affected. A remote attacker able to
access the JNDI service (port 1099), HA-JNDI service (port 1100), or the
HAJNDIFactory invoker servlet on a JBoss server could use this flaw to add,
delete, and modify items in the JNDI tree. This could have various,
application-specific impacts. (CVE-2011-4605)
When a JBoss server is configured to use JaccAuthorizationRealm, the
WebPermissionMapping class creates permissions that are not checked and can
permit access to users without checking their roles. If the
ignoreBaseDecision property is set to true on JBossWebRealm, the web
authorization process is handled exclusively by JBossAuthorizationEngine,
without any input from JBoss Web. This allows any valid user to access an
application, without needing to be assigned the role specified in the
application's web.xml "security-constraint" tag. (CVE-2012-1167)
Red Hat would like to thank Christian SchlÄ
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