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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT Security Bulletin ASB-2012.0074.2 IP addresses in sudoers with netmask may match additional hosts 24 May 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: sudo Operating System: UNIX variants (UNIX, Linux, OSX) Impact/Access: Unauthorised Access -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2012-2337 Member content until: Saturday, June 16 2012 Revision History: May 24 2012: Updated CVE reference May 17 2012: Initial Release OVERVIEW A vulnerability exists in sudo versions 1.6.9p3 through 1.8.4p4 which may allow users authorised to run commands to do so on hosts that belong to other networks not explicitly listed in sudoers. IMPACT The vendor provided this Vulnerability description: "Exploitation of the bug requires that the user already be in the sudoers file (or sudoers LDAP data) and be granted access to commands on hosts on one or more IPv4 networks. If sudoers does not include IP networks in the host specification portion of the sudoers rules, the bug has no effect." [1] MITIGATION Upgrade sudo to version 1.8.4p5 or 1.7.9p1 REFERENCES [1] IP addresses in sudoers with netmask may match additional hosts http://www.sudo.ws/sudo/alerts/netmask.html AusCERT has made every effort to ensure that the information contained in this document is accurate. However, the decision to use the information described is the responsibility of each user or organisation. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBT72AX+4yVqjM2NGpAQIt6g/+PsJyVf5DkqCQVoYFuiBSAGmC991BRRrb XAvD0e+r0oFzCTI1eeylpn1x+jsn+NeNlwsrAYYWoT8gEUEtsQZ8NdXLSY2lJyj+ s39xtTgCPaCe9PjyU2crsHbxijH8zovBBlppEiaxgZbdPAQPIC23RvNV+BUmO2oY cge4eH9dqMUTdr0xP4pIZ5kQb8n/rJL67d11rM+SOWw/oKbJlWK9qYszyHtItv5J cjy9VY0odO4ZYCf168UASIhim4HmnOSYkr2f+rDYAcei6Yb9qPA+OjQn5gbYJcU9 J9pGgro/L2itfbWWB5HuHf+Ou3jMlr9LKBoCfWtRwZKK59LDpC7meam+YZQYHODi 90GISvs10adjMMki8sW6MLcLhrcloSPHgWBS9c2zpQXMic1T57qKiFVKMxq1ax4c qOzPCkEOcv/wFXs1TSl/TGMzAm0DwUdfUga4WvkO6BRF/nB8JuEOqok4qkn+9Fez nCo9+aZI8aCMfvSf+c+nc3hMMS7z0RjFy5gy+mhGjYpi8INa1qmCoyYKfjLcARH+ Lqiu7py8LbZLZZTHn5RbbNGkEDcMyzenNrAS36FbjBwNQoHWMBtHrYS/o6nPHp0k 55FqYYc3dwn8CCTsINh12o5ROWF7VRviDzyQ6Rt1w2Z6/0R0opSlleOepa0DKM2P zDFvKFqy6/o= =qMjw -----END PGP SIGNATURE-----