-----BEGIN PGP SIGNED MESSAGE----- =============================================================================== Security Advisory CERT-NL =============================================================================== Author/Source : Roy Arends Index : S-99-01 Distribution : World Page : 1 Classification: External Version: 1 Subject : Trojan horse version of TCP Wrappers Date : 22-Jan-99 =============================================================================== By courtesy of CERT Coordination Center we received information that some copies of the source code for the TCP Wrappers tool (tcpd) were modified by an intruder and contain a Trojan horse. An intruder can gain unauthorized root access to any host running this Trojan horse version of TCP Wrappers. CERT-NL urges you to verify the authenticity of your TCP Wrapper distribution, regardless of where it was obtained. All CERT Coordination Center advisories are mirrored by CERT-NL. The specific URL for this case is: ftp://ftp.surfnet.nl/surfnet/net-security/cert-cc-mirror/cert_advisories/CA-9 9-01-Trojan-TCP-Wrappers.txt ADVISORIES ARE REGULARLY UPDATED BY CERT COORDINATION CENTER. Therefore we advise you to check on our mirror regularly - you can automate this process using the CERT-NL notifier service. 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/ ============================================================================== 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://www.surfnet.nl/surfnet/security/cert-nl.html ftp://ftp.surfnet.nl/surfnet/net-security 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 52 87 92 82 ALTIJD BEREIKBAAR EMERGENCIES : +31 6 52 87 92 82 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. ============================================================================== -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 5.5.3i for non-commercial use iQCVAwUBNqg+evE6s6q7Tf4RAQFGXAP+KYx/6+VhUhz7dms7p++5Xpzx89kIiEbp aNkIqd9Q/LLQKkgO1hF7AdIYfDP2DkEuxoBYLBVvcoHxRg1bB5jTsKVnUNJql1a3 jwY96/cMbZCYRA3YbPMj61uijanQX6XOQSuSktchEZLkYOcG/G2TNauKpOHbX6Qz 3uwiPvkVJu4= =WQ7l -----END PGP SIGNATURE-----