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Red Hat 6.2-7.1: RHSA-2001:165-08 Critical: Uuxqt Escalation Risk

uuxqt in Taylor UUCP package does not properly remove dangerous longoptions, which allows local users to gain uid and gid uucp privileges by calling uux and specifying an alternate configuration file with the--config option.. ` --------------------------------------------------------------------- Red Hat, Inc. Red Hat Security Advisory Synopsis: The uuxqt utility can be used to execute arbitrary commands as uucp.uucp Advisory ID: RHSA-2001:165-08 Issue date: 2001-12-06 Updated on: 2002-01-15 Product: Red Hat Linux Keywords: uucp exploit uuxqt Cross references: Obsoletes: --------------------------------------------------------------------- 1. Topic: uuxqt in Taylor UUCP package does not properly remove dangerous long options, which allows local users to gain uid and gid uucp privileges by calling uux and specifying an alternate configuration file with the --config option. 2. Relevant releases/architectures: Red Hat Linux 6.2 - alpha, i386, sparc Red Hat Linux 7.0 - alpha, i386 Red Hat Linux 7.1 - alpha, i386, ia64 Red Hat Linux 7.2 - i386, ia64 3. Problem description: Please note Red Hat Linux 7.2 is not vulnerable to this bug. Please also note that Red Hat Linux 7.2 uses a different locking scheme to previous versions, and so the 7.2 packages should not be applied to Red Hat Linux 7.0 or 7.1 systems. Use the packages from this errata instead. Conversely, the packages from this errata should not be applied to a Red Hat Linux 7.2 system The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2001-0873 to this issue. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed butincluded in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. 5. Bug IDs fixed ( for more info): 6. RPMs required: Red Hat Linux 6.2: SRPMS: alpha: i386: sparc: Red Hat Linux 7.0: SRPMS: alpha: i386: Red Hat Linux 7.1: SRPMS: alpha: i386: ia64: Red Hat Linux 7.2: SRPMS: i386: ia64: 7. Verification: MD5 sum Package Name -------------------------------------------------------------------------- ad99fe81ef219654509bed11a3d1d22a 6.2/en/os/SRPMS/uucp-1.06.1-31.6x.src.rpm 0f1100a60099c2c9e61dc8cfa81e8f74 6.2/en/os/alpha/uucp-1.06.1-31.6x.alpha.rpm ca8e4e44be51262bcc942a2742b207a4 6.2/en/os/i386/uucp-1.06.1-31.6x.i386.rpm 0b3d52c4e33787746b4d22832dde9dd3 6.2/en/os/sparc/uucp-1.06.1-31.6x.sparc.rpm 315617605947efe0e7ac3f6ad7e9baac 7.0/en/os/SRPMS/uucp-1.06.1-31.7.1.src.rpm 88c4667b09f2270db30e551950fe015a 7.0/en/os/alpha/uucp-1.06.1-31.7.1.alpha.rpm 349267562cec736d6d24429a259cd296 7.0/en/os/i386/uucp-1.06.1-31.7.1.i386.rpm 315617605947efe0e7ac3f6ad7e9baac 7.1/en/os/SRPMS/uucp-1.06.1-31.7.1.src.rpm 88c4667b09f2270db30e551950fe015a 7.1/en/os/alpha/uucp-1.06.1-31.7.1.alpha.rpm 349267562cec736d6d24429a259cd296 7.1/en/os/i386/uucp-1.06.1-31.7.1.i386.rpm 049a28c7101a96b5a298d66fbb912237 7.1/en/os/ia64/uucp-1.06.1-31.7.1.ia64.rpm 8bc3e57f6436af2ea372712532580442 7.2/en/os/SRPMS/uucp-1.06.1-32.src.rpm 57c87d55396721e910fe89cf43bacac1 7.2/en/os/i386/uucp-1.06.1-32.i386.rpm 705756177aaf2719da845e666175c8b4 7.2/en/os/ia64/uucp-1.06.1-32.ia64.rpm These packages are GPG signed by Red Hat, Inc. for security. Our key isavailable at: About You can verify each package with the following command: rpm --checksig If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command: rpm --checksig --nogpg 8. References: CVE -CVE-2001-0873 Copyright(c) 2000, 2001, 2002 Red Hat, Inc. `. Critical Red Hat advisory addresses uuxqt permissions escalation issue allowing local users to gain privileges. Update advised.. Red Hat Security,uuxqt exploit,command execution risk,local privilege escalation. . Severity: Critical. LinuxSecurity.com Team

Jan 17, 2002 •Critical Red Hat