CVE-2011-1137

ProFTPd - 'mod_sftp' Integer Overflow Denial of Service (PoC)

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Integer overflow in the mod_sftp (aka SFTP) module in ProFTPD 1.3.3d and earlier allows remote attackers to cause a denial of service (memory consumption leading to OOM kill) via a malformed SSH message.

Desbordamiento de enteros en el módulo mod_sftp (también conocido como SFTP) en ProFTPD v1.3.3d y anteriores, permite a atacantes remotos provocar una denegación de servicio (agotamiento de memoria) a través de un mensaje SSH con formato incorrecto.

Multiple vulnerabilities have been found in ProFTPD, the worst of which leading to remote execution of arbitrary code. Versions less than 1.3.4d are affected.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-02-07 First Exploit
2011-03-02 CVE Reserved
2011-03-11 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-189: Numeric Errors

CAPEC

References (18)

URL	Tag	Source
http://bugs.proftpd.org/show_bug.cgi?id=3587	X_refsource_confirm
http://secunia.com/advisories/43978	Third Party Advisory
http://www.vupen.com/english/advisories/2011/0857	Vdb Entry

URL	Date	SRC
https://www.exploit-db.com/exploits/16129	2011-02-07
http://www.exploit-db.com/exploits/16129	2024-08-06
http://www.securityfocus.com/bid/46183	2024-08-06
https://bugzilla.redhat.com/show_bug.cgi?id=681718	2024-08-06

URL	Date	SRC
http://bugs.proftpd.org/show_bug.cgi?id=3586	2011-09-07
http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/mod_sftp.c?r1=1.29.2.1&r2=1.29.2.2	2011-09-07

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058344.html	2011-09-07
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058356.html	2011-09-07
http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.c?r1=1.14.2.2&r2=1.14.2.3	2011-09-07
http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.h?r1=1.3&r2=1.3.2.1	2011-09-07
http://secunia.com/advisories/43234	2011-09-07
http://secunia.com/advisories/43635	2011-09-07
http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.485806	2011-09-07
http://www.debian.org/security/2011/dsa-2185	2011-09-07
http://www.vupen.com/english/advisories/2011/0617	2011-09-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				<= 1.3.3 Search vendor "Proftpd" for product "Proftpd" and version " <= 1.3.3"		d		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.0 Search vendor "Proftpd" for product "Proftpd" and version "1.2.0"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.0 Search vendor "Proftpd" for product "Proftpd" and version "1.2.0"		pre10		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.0 Search vendor "Proftpd" for product "Proftpd" and version "1.2.0"		pre9		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.0 Search vendor "Proftpd" for product "Proftpd" and version "1.2.0"		rc1		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.0 Search vendor "Proftpd" for product "Proftpd" and version "1.2.0"		rc2		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.0 Search vendor "Proftpd" for product "Proftpd" and version "1.2.0"		rc3		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.1 Search vendor "Proftpd" for product "Proftpd" and version "1.2.1"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.2 Search vendor "Proftpd" for product "Proftpd" and version "1.2.2"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.2 Search vendor "Proftpd" for product "Proftpd" and version "1.2.2"		rc1		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.2 Search vendor "Proftpd" for product "Proftpd" and version "1.2.2"		rc2		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.2 Search vendor "Proftpd" for product "Proftpd" and version "1.2.2"		rc3		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.3 Search vendor "Proftpd" for product "Proftpd" and version "1.2.3"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.4 Search vendor "Proftpd" for product "Proftpd" and version "1.2.4"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.5 Search vendor "Proftpd" for product "Proftpd" and version "1.2.5"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.5 Search vendor "Proftpd" for product "Proftpd" and version "1.2.5"		rc1		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.5 Search vendor "Proftpd" for product "Proftpd" and version "1.2.5"		rc2		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.5 Search vendor "Proftpd" for product "Proftpd" and version "1.2.5"		rc3		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.6 Search vendor "Proftpd" for product "Proftpd" and version "1.2.6"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.6 Search vendor "Proftpd" for product "Proftpd" and version "1.2.6"		rc1		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.6 Search vendor "Proftpd" for product "Proftpd" and version "1.2.6"		rc2		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.7 Search vendor "Proftpd" for product "Proftpd" and version "1.2.7"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.7 Search vendor "Proftpd" for product "Proftpd" and version "1.2.7"		rc1		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.7 Search vendor "Proftpd" for product "Proftpd" and version "1.2.7"		rc2		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.7 Search vendor "Proftpd" for product "Proftpd" and version "1.2.7"		rc3		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.8 Search vendor "Proftpd" for product "Proftpd" and version "1.2.8"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.8 Search vendor "Proftpd" for product "Proftpd" and version "1.2.8"		rc1		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.8 Search vendor "Proftpd" for product "Proftpd" and version "1.2.8"		rc2		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.9 Search vendor "Proftpd" for product "Proftpd" and version "1.2.9"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.9 Search vendor "Proftpd" for product "Proftpd" and version "1.2.9"		rc1		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.9 Search vendor "Proftpd" for product "Proftpd" and version "1.2.9"		rc2		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.9 Search vendor "Proftpd" for product "Proftpd" and version "1.2.9"		rc3		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.10 Search vendor "Proftpd" for product "Proftpd" and version "1.2.10"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.10 Search vendor "Proftpd" for product "Proftpd" and version "1.2.10"		rc1		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.10 Search vendor "Proftpd" for product "Proftpd" and version "1.2.10"		rc2		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.2.10 Search vendor "Proftpd" for product "Proftpd" and version "1.2.10"		rc3		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.0 Search vendor "Proftpd" for product "Proftpd" and version "1.3.0"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.0 Search vendor "Proftpd" for product "Proftpd" and version "1.3.0"		a		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.0 Search vendor "Proftpd" for product "Proftpd" and version "1.3.0"		rc1		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.0 Search vendor "Proftpd" for product "Proftpd" and version "1.3.0"		rc2		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.0 Search vendor "Proftpd" for product "Proftpd" and version "1.3.0"		rc3		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.0 Search vendor "Proftpd" for product "Proftpd" and version "1.3.0"		rc4		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.0 Search vendor "Proftpd" for product "Proftpd" and version "1.3.0"		rc5		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.1 Search vendor "Proftpd" for product "Proftpd" and version "1.3.1"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.1 Search vendor "Proftpd" for product "Proftpd" and version "1.3.1"		rc1		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.1 Search vendor "Proftpd" for product "Proftpd" and version "1.3.1"		rc2		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.1 Search vendor "Proftpd" for product "Proftpd" and version "1.3.1"		rc3		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.2 Search vendor "Proftpd" for product "Proftpd" and version "1.3.2"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.2 Search vendor "Proftpd" for product "Proftpd" and version "1.3.2"		a		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.2 Search vendor "Proftpd" for product "Proftpd" and version "1.3.2"		b		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.2 Search vendor "Proftpd" for product "Proftpd" and version "1.3.2"		c		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.2 Search vendor "Proftpd" for product "Proftpd" and version "1.3.2"		d		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.2 Search vendor "Proftpd" for product "Proftpd" and version "1.3.2"		e		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.2 Search vendor "Proftpd" for product "Proftpd" and version "1.3.2"		rc1		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.2 Search vendor "Proftpd" for product "Proftpd" and version "1.3.2"		rc2		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.2 Search vendor "Proftpd" for product "Proftpd" and version "1.3.2"		rc3		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.2 Search vendor "Proftpd" for product "Proftpd" and version "1.3.2"		rc4		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.3 Search vendor "Proftpd" for product "Proftpd" and version "1.3.3"		-		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.3 Search vendor "Proftpd" for product "Proftpd" and version "1.3.3"		a		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.3 Search vendor "Proftpd" for product "Proftpd" and version "1.3.3"		b		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.3 Search vendor "Proftpd" for product "Proftpd" and version "1.3.3"		c		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.3 Search vendor "Proftpd" for product "Proftpd" and version "1.3.3"		rc1		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.3 Search vendor "Proftpd" for product "Proftpd" and version "1.3.3"		rc2		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.3 Search vendor "Proftpd" for product "Proftpd" and version "1.3.3"		rc3		Affected
Proftpd Search vendor "Proftpd"		Proftpd Search vendor "Proftpd" for product "Proftpd"				1.3.3 Search vendor "Proftpd" for product "Proftpd" and version "1.3.3"		rc4		Affected