{"vuid":"VU#440539","idnumber":"440539","name":"Digital Unix msgchk vulnerable to file contents disclosure via symlink redirection of profile","keywords":["Digital Unix","msgchk","file disclosure","symlink","symbolic link","MH_PROFILE","home directory"],"overview":"msgchk, a part of the MH mail system, reads the user's .mh_profile in order to obtain configuration options. If the .mh_profile is linked to another file with illegal format, the first line of that file will be displayed in an error message by msgchk.","clean_desc":"msgchk is the portion of the MH mail system that checks for new mail in the system spool folder. It reads the user's .mh_profile in order to obtain configuration options. If that file is linked to another file readable by the effective user of msgchk, and not of legal .mh_profile format, then msgchk will display the first line of that file in an error message.","impact":"If msgchk executes with the user's effective UID, there is no vulnerability here. If msgchk is protected to set another UID, there is a possibility that an attacker may view protected information.","resolution":"The CERT/CC is currently unaware of a practical solution to this problem.","workarounds":"Remove setuid privileges from msgchk.","sysaffected":"","thanks":"This vulnerability was first described by Seung Huyn Seo.","author":"This document was last modified by Tim Shimeall.","public":["h","t","t","p",":","/","/","w","w","w",".","s","e","c","u","r","i","t","y","f","o","c","u","s",".","c","o","m","/","b","i","d","/","3","3","2","0"],"cveids":["CVE-2001-1092"],"certadvisory":"","uscerttechnicalalert":null,"datecreated":"2001-09-12T14:42:43Z","publicdate":"2001-09-10T00:00:00Z","datefirstpublished":"2001-11-15T16:37:19Z","dateupdated":"2001-11-15T16:39:27Z","revision":11,"vrda_d1_directreport":"","vrda_d1_population":"","vrda_d1_impact":"","cam_widelyknown":"15","cam_exploitation":"0","cam_internetinfrastructure":"5","cam_population":"10","cam_impact":"5","cam_easeofexploitation":"10","cam_attackeraccessrequired":"10","cam_scorecurrent":"1.875","cam_scorecurrentwidelyknown":"2.34375","cam_scorecurrentwidelyknownexploited":"4.21875","ipprotocol":"","cvss_accessvector":"","cvss_accesscomplexity":"","cvss_authentication":null,"cvss_confidentialityimpact":"","cvss_integrityimpact":"","cvss_availabilityimpact":"","cvss_exploitablity":null,"cvss_remediationlevel":"","cvss_reportconfidence":"","cvss_collateraldamagepotential":"","cvss_targetdistribution":"","cvss_securityrequirementscr":"","cvss_securityrequirementsir":"","cvss_securityrequirementsar":"","cvss_basescore":"","cvss_basevector":"","cvss_temporalscore":"","cvss_environmentalscore":"","cvss_environmentalvector":"","metric":1.875,"vulnote":null}