ppp utility in FreeBSD 4.1.1 and earlier does not properly restrict access as specified by the nat deny_incoming command, which allows remote attackers to connect to the target system.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Freebsd | Freebsd | 3.5 (including) | 3.5 (including) |
| Freebsd | Freebsd | 3.5.1 (including) | 3.5.1 (including) |
| Freebsd | Freebsd | 4.0 (including) | 4.0 (including) |
| Freebsd | Freebsd | 4.1 (including) | 4.1 (including) |
| Freebsd | Freebsd | 4.1.1-stable (including) | 4.1.1-stable (including) |
References
- ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:70.ppp-nat.asc
- http://www.osvdb.org/1655
- http://www.securityfocus.com/bid/1974
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5584
- ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:70.ppp-nat.asc
- http://www.osvdb.org/1655
- http://www.securityfocus.com/bid/1974
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5584