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[8lgm]-Advisory-11.UNIX.sadc.07-Jan-1992[8LGM] Security Team (8lgmbagpuss.demon.co.uk)
Mon, 28 Nov 1994 02:39:32 GMT
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This advisory has been sent to: comp.security.unix BUGTRAQ <bugtraqfc.net> CERT/CC <certcert.org> SCO <security-alertsco.com> =========================================================================== [8lgm]-Advisory-11.UNIX.sadc.07-Jan-1992 PROGRAM: sadc(1M) (/usr/lib/sa/sadc) Supplied with SYS V accounting utilities KNOWN VULNERABLE OS's: SCO UNIX 3.2v4.2 (suid root) SVR4/i386 4.0.3 (sgid sys) A/UX 2.0.1 (sgid sys) DESCRIPTION: sadc(1M) can be used to create files in normally unwritable directories. sadc normally runs egid sys, and therefore can be used to create files in group sys writeable directories. SCOs sadc runs euid root, and therefore can be used to create files anywhere on the filesystem. IMPACT: Any user with access to sadc under SCO can become root. On other vulnerable systems, users may have improved chances of gaining root access. REPEAT BY: Exploit details will not be made available, until patches have been provided. FIX: Contact your vendor for a fix. WORKAROUND: In the meantime, limit access to sadc by changing mode on /usr/lib/sa. FEEDBACK AND CONTACT INFORMATION: 8lgm-bugsbagpuss.demon.co.uk (To report security flaws) 8lgm-requestbagpuss.demon.co.uk (Mailing list additions - processed automatically; just send any message) 8lgmbagpuss.demon.co.uk (Everything else) System Administrators are encouraged to contact us for any other information they may require about the problems described in this advisory. We welcome reports about which platforms this flaw does or does not exist on. NB: 8lgm-bugsbagpuss.demon.co.uk is intended to be used by people wishing to report which platforms/OS's the bugs in our advisories are present on. Please do *not* send information on other bugs to this address - report them to your vendor and/or comp.security.unix instead. 8LGM MAILING LIST: Send any message to 8lgm-requestbagpuss.demon.co.uk and the address you mail from will automatically be added to the list. If you need to subscribe to an address you cannot mail from (eg an alias), send mail to 8lgmbagpuss.demon.co.uk and request to be added to the list. Due to our mail volume, we appreciate it if you can use 8lgm-request instead; thus if you need to subscribe an alias, please look into using, say sendmail -f, if possible. 8LGM FILESERVER: All [8LGM] advisories may be obtained via the [8LGM] fileserver. For details, 'echo help | mail 8lgm-fileserverbagpuss.demon.co.uk' ===========================================================================