Subject Java Implementations Can Allow Connections
2683cfa5ec157500f0f04ac3be46b5ec8389e524729b4db721562fa0ee95a910
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>> CERT-NL, 01-Mar-2000 <<
>> All CERT-NL information has been moved to http://cert.surfnet.nl. Links <<
>> to CERT-NL information contained in this advisory are therefore outdated. <<
>> <<
>> CERT-NL also has stopped the CERT-CC-Mirror service. Due to this the <<
>> links to the CERT-CC mirror are obsolete. Visit the CERT-CC site for the <<
>> complete CERT-CC advisory texts: http://www.cert.org <<
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Security Advisory CERT-NL
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Author/Source : N.P. de Koo Index : S-96-12
Distribution : World Page : 1
Classification: External Version: 1
Subject : Java Implementations Can Allow Connections
to an Arbitrary Host Date : 06-Mar-96
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By courtesy of CERT Coordination Center we received the following information.
CERT Coordination Center advisory CA-96.05 reports a vulnerability
in Netscape Navigator 2.0 Java implementation and in Release
1.0 of the Java Developer's Kit from Sun Microsystems, Inc.
This vulnerability allows that Java applets can connect to arbitrary hosts on
the Internet, including those presumed to be previously inaccessible, such as
hosts behind a firewall.
This advisory provides information on patches to be obtained from
http://home.netscape.com/newsref/std/java_security.html
for the Netscape part. Sun will release a patch soon.
CERT-NL recommends, until you install the patch, disabling Java using the
"Security Preferences" dialog box.
Additional information with regards to this vulnerability is placed in
the README file associated with the advisory. You are encouraged to check
on README file updates regularly. You can automate that process by using
the CERT-NL notifier service.
All CERT Coordination Center advisories and README's are mirrored by CERT-NL.
The specific URL's for this case are:
> ftp://ftp.surfnet.nl/surfnet/net-security/cert-cc-mirror/cert_advisories/CA-96.05.java_applet_security_mgr
> ftp://ftp.surfnet.nl/surfnet/net-security/cert-cc-mirror/cert_advisories/CA-96.05.README
More information about the CERT-NL mirror and notifier services is
contained in News items N-95-01 (notifier) and N-95-02 (CERT mirror),
both present on ftp://ftp.surfnet.nl/surfnet/net-security/cert-nl/docs/news/
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CERT-NL is the Computer Emergency Response Team for SURFnet customers. SURFnet
is the Dutch network for educational, research and related institutes. CERT-NL
is a member of the Forum of Incident Response and Security Teams (FIRST).
All CERT-NL material is available under:
http://cert.surfnet.nl/
In case of computer or network security problems please contact your local
CERT/security-team or CERT-NL (if your institute is NOT a SURFnet customer
please address the appropriate (local) CERT/security-team).
CERT-NL is one/two hour(s) ahead of UTC (GMT) in winter/summer,
i.e. UTC+0100 in winter and UTC+0200 in summer (DST).
Email: cert-nl@surfnet.nl ATTENDED REGULARLY ALL DAYS
Phone: +31 302 305 305 BUSINESS HOURS ONLY
Fax: +31 302 305 329 BUSINESS HOURS ONLY
Snailmail: SURFnet bv
Attn. CERT-NL
P.O. Box 19035
NL - 3501 DA UTRECHT
The Netherlands
NOODGEVALLEN: 06 22 92 35 64 ALTIJD BEREIKBAAR
EMERGENCIES : +31 6 22 92 35 64 ATTENDED AT ALL TIMES
CERT-NL'S EMERGENCY PHONENUMBER IS ONLY TO BE USED IN CASE OF EMERGENCIES:
THE SURFNET HELPDESK OPERATING THE EMERGENCY NUMBER HAS A *FIXED*
PROCEDURE FOR DEALING WITH YOUR ALERT AND WILL IN REGULAR CASES RELAY IT
TO CERT-NL IN AN APPROPRIATE MANNER. CERT-NL WILL THEN CONTACT YOU.
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