Secunia Security Advisory - Two vulnerabilities have been reported in ProFTPD, which can be exploited by malicious users to manipulate certain data and malicious people to compromise a vulnerable system.
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TITLE:
ProFTPD Directory Traversal and Buffer Overflow Vulnerabilities
SECUNIA ADVISORY ID:
SA42052
VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42052/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42052
RELEASE DATE:
2010-11-02
DISCUSS ADVISORY:
http://secunia.com/advisories/42052/#comments
AVAILABLE ON SITE AND IN CUSTOMER AREA:
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* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)
http://secunia.com/advisories/42052/
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https://ca.secunia.com/?page=viewadvisory&vuln_id=42052
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DESCRIPTION:
Two vulnerabilities have been reported in ProFTPD, which can be
exploited by malicious users to manipulate certain data and malicious
people to compromise a vulnerable system.
1) A logic error within the "pr_netio_telnet_gets()" function in
src/netio.c when processing user input containing the Telnet IAC
(Interpret As Command) escape sequence can be exploited to cause a
stack-based buffer overflow by sending specially crafted input to the
FTP or FTPS service.
Successful exploitation may allow execution of arbitrary code.
2) An input validation error within the "mod_site_misc" module can be
exploited to e.g. create and delete directories, create symlinks, and
change the time of files located outside a writable directory.
Successful exploitation requires that ProFTPD is compiled with the
"mod_site_misc" module and the attacker has write access to a
directory.
SOLUTION:
Update to version 1.3.3c.
PROVIDED AND/OR DISCOVERED BY:
1) The vendor credits an anonymous person via ZDI.
2) The vendor credits an anonymous person via SecuriTeam Secure
Disclosure program.
ORIGINAL ADVISORY:
http://www.proftpd.org/docs/NEWS-1.3.3c
1) http://bugs.proftpd.org/show_bug.cgi?id=3521
2) http://bugs.proftpd.org/show_bug.cgi?id=3519
OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
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