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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2002.027 -- RHSA-2002:011-06 and RHSA-2002:013-03 Updated sudo packages are available 18 January 2002 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: sudo Vendor: Red Hat Operating System: Red Hat Linux 7.0 Red Hat Linux 7.1 Red Hat Linux 7.2 Red Hat Powertools 6.2 Platform: Alpha i386 IA-64 SPARC Impact: Root Compromise Access Required: Existing Account Note: Two Red Hat Security Advisories are included in this ESB.i - --------------------------BEGIN INCLUDED TEXT-------------------- - --------------------------------------------------------------------- Red Hat, Inc. Red Hat Security Advisory Synopsis: Updated sudo packages are available Advisory ID: RHSA-2002:011-06 Issue date: 2002-01-14 Updated on: 2002-01-15 Product: Red Hat Linux Keywords: sudo environment Cross references: Obsoletes: - --------------------------------------------------------------------- 1. Topic: Updated sudo packages fixing a security problem are available. 2. Relevant releases/architectures: 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: Versions of sudo prior to 1.6.4 would not clear the environment before sending an email notification about unauthorized sudo attempts, making it possible for an attacker to supply parameters to the mail program. In the worst case, this could lead to a local root exploit. Users of sudo are advised to upgrade to version 1.6.4 which is not vulnerable 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 but included 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 (http://bugzilla.redhat.com/bugzilla for more info): 6. RPMs required: Red Hat Linux 7.0: SRPMS: ftp://updates.redhat.com/7.0/en/os/SRPMS/sudo-1.6.4-0.7x.2.src.rpm alpha: ftp://updates.redhat.com/7.0/en/os/alpha/sudo-1.6.4-0.7x.2.alpha.rpm i386: ftp://updates.redhat.com/7.0/en/os/i386/sudo-1.6.4-0.7x.2.i386.rpm Red Hat Linux 7.1: SRPMS: ftp://updates.redhat.com/7.1/en/os/SRPMS/sudo-1.6.4-0.7x.2.src.rpm alpha: ftp://updates.redhat.com/7.1/en/os/alpha/sudo-1.6.4-0.7x.2.alpha.rpm i386: ftp://updates.redhat.com/7.1/en/os/i386/sudo-1.6.4-0.7x.2.i386.rpm ia64: ftp://updates.redhat.com/7.1/en/os/ia64/sudo-1.6.4-0.7x.2.ia64.rpm Red Hat Linux 7.2: SRPMS: ftp://updates.redhat.com/7.2/en/os/SRPMS/sudo-1.6.4-0.7x.2.src.rpm i386: ftp://updates.redhat.com/7.2/en/os/i386/sudo-1.6.4-0.7x.2.i386.rpm ia64: ftp://updates.redhat.com/7.2/en/os/ia64/sudo-1.6.4-0.7x.2.ia64.rpm 7. Verification: MD5 sum Package Name - -------------------------------------------------------------------------- 68dfd955e1e8f39fe41a4b7639195f11 7.0/en/os/SRPMS/sudo-1.6.4-0.7x.2.src.rpm ff225f9d53084e29d0d558c8daea95b6 7.0/en/os/alpha/sudo-1.6.4-0.7x.2.alpha.rpm ca088e51c3dd8f172063b0f8d122a5e5 7.0/en/os/i386/sudo-1.6.4-0.7x.2.i386.rpm 68dfd955e1e8f39fe41a4b7639195f11 7.1/en/os/SRPMS/sudo-1.6.4-0.7x.2.src.rpm ff225f9d53084e29d0d558c8daea95b6 7.1/en/os/alpha/sudo-1.6.4-0.7x.2.alpha.rpm ca088e51c3dd8f172063b0f8d122a5e5 7.1/en/os/i386/sudo-1.6.4-0.7x.2.i386.rpm fedccbb28833f82f220ab148fb2cd42a 7.1/en/os/ia64/sudo-1.6.4-0.7x.2.ia64.rpm 68dfd955e1e8f39fe41a4b7639195f11 7.2/en/os/SRPMS/sudo-1.6.4-0.7x.2.src.rpm ca088e51c3dd8f172063b0f8d122a5e5 7.2/en/os/i386/sudo-1.6.4-0.7x.2.i386.rpm fedccbb28833f82f220ab148fb2cd42a 7.2/en/os/ia64/sudo-1.6.4-0.7x.2.ia64.rpm These packages are GPG signed by Red Hat, Inc. for security. Our key is available at: http://www.redhat.com/about/contact/pgpkey.html You can verify each package with the following command: rpm --checksig <filename> 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 <filename> 8. References: http://www.courtesan.com/sudo/sudo.html Copyright(c) 2000, 2001, 2002 Red Hat, Inc. - --------------------------------------------------------------------- Red Hat, Inc. Red Hat Security Advisory Synopsis: Updated sudo package is available Advisory ID: RHSA-2002:013-03 Issue date: 2002-01-14 Updated on: 2002-01-14 Product: Red Hat Powertools Keywords: sudo environment root exploit Cross references: RHSA-2002:011 Obsoletes: - --------------------------------------------------------------------- 1. Topic: This updated sudo package fixes a potential local root exploit. 2. Relevant releases/architectures: Red Hat Powertools 6.2 - alpha, i386, sparc 3. Problem description: Versions of sudo prior to 1.6.4 would not clear the environment before sending an email notification about unauthorized sudo attempts, making it possible for an attacker to supply parameters to the mail program. In the worst case, this could lead to a local root exploit. Users of sudo are advised to upgrade to version 1.6.4, which is not vulnerable 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 but included 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 (http://bugzilla.redhat.com/bugzilla for more info): 6. RPMs required: Red Hat Powertools 6.2: SRPMS: ftp://updates.redhat.com/6.2/en/powertools/SRPMS/sudo-1.6.4-0.6x.2.src.rpm alpha: ftp://updates.redhat.com/6.2/en/powertools/alpha/sudo-1.6.4-0.6x.2.alpha.rpm i386: ftp://updates.redhat.com/6.2/en/powertools/i386/sudo-1.6.4-0.6x.2.i386.rpm sparc: ftp://updates.redhat.com/6.2/en/powertools/sparc/sudo-1.6.4-0.6x.2.sparc.rpm 7. Verification: MD5 sum Package Name - -------------------------------------------------------------------------- f392e76c338e57c92d86d392ec79bae8 6.2/en/powertools/SRPMS/sudo-1.6.4-0.6x.2.src.rpm 72db8fbf661746bebbab87de50183b35 6.2/en/powertools/alpha/sudo-1.6.4-0.6x.2.alpha.rpm 78c9a8dcd055d709030b072dc44259bb 6.2/en/powertools/i386/sudo-1.6.4-0.6x.2.i386.rpm 7ff399944c2185843c76533b97a06528 6.2/en/powertools/sparc/sudo-1.6.4-0.6x.2.sparc.rpm These packages are GPG signed by Red Hat, Inc. for security. Our key is available at: http://www.redhat.com/about/contact/pgpkey.html You can verify each package with the following command: rpm --checksig <filename> 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 <filename> 8. References: http://www.courtesan.com/sudo/sudo.html Copyright(c) 2000, 2001, 2002 Red Hat, Inc. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to use any or all of this information is the responsibility of each user or organisation, and should be done so in accordance with site policies and procedures. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the original authors to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/Information/advisories.html If you believe that your system has been compromised, contact AusCERT or your representative in FIRST (Forum of Incident Response and Security Teams). Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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