1st Class Internet Solutions 1st Class Mail Server Remote Buffer Overflow Vulnerability
BID:9794
Info
1st Class Internet Solutions 1st Class Mail Server Remote Buffer Overflow Vulnerability
| Bugtraq ID: | 9794 |
| Class: | Boundary Condition Error |
| CVE: | |
| Remote: | Yes |
| Local: | No |
| Published: | Mar 02 2004 12:00AM |
| Updated: | Mar 02 2004 12:00AM |
| Credit: | Discovery of this vulnerability has been credited to JeFFOsZ <[email protected]>. |
| Vulnerable: |
1st Class Internet Solutions 1st Class Mail Server 4.0 |
| Not Vulnerable: | |
Discussion
1st Class Internet Solutions 1st Class Mail Server Remote Buffer Overflow Vulnerability
1st Class Mail Server has been reported prone to a remote buffer overflow vulnerability. The issue exists due to a lack of sufficient boundary checks performed on user-supplied data.
A remote attacker may pass excessive data as an argument for an APOP command passed to the affected server. The attacker may exploit this issue to corrupt a saved instruction pointer and in doing so may potentially influence execution flow of the affected service into attacker-supplied instructions.
1st Class Mail Server has been reported prone to a remote buffer overflow vulnerability. The issue exists due to a lack of sufficient boundary checks performed on user-supplied data.
A remote attacker may pass excessive data as an argument for an APOP command passed to the affected server. The attacker may exploit this issue to corrupt a saved instruction pointer and in doing so may potentially influence execution flow of the affected service into attacker-supplied instructions.
Exploit / POC
1st Class Internet Solutions 1st Class Mail Server Remote Buffer Overflow Vulnerability
The following example has been supplied:
APOP user AAAA ... [626 * A] ... AAAA
Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.
The following example has been supplied:
APOP user AAAA ... [626 * A] ... AAAA
Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.
Solution / Fix
1st Class Internet Solutions 1st Class Mail Server Remote Buffer Overflow Vulnerability
Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.
Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.
References
1st Class Internet Solutions 1st Class Mail Server Remote Buffer Overflow Vulnerability
References:
References:
- 1st Class Mail Server Homepage (1st Class Internet Solutions)
- POP3 Server Buffer Overflow (JeFFOsZ