ProFTPD up to 1.3.3 mod_sftpd Big Payload numeric error

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in ProFTPD up to 1.3.3. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component mod_sftpd. The manipulation as part of Big Payload results in numeric error. This vulnerability is known as CVE-2011-1137. Furthermore, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in ProFTPD up to 1.3.3 (File Transfer Software). It has been classified as critical. Affected is some unknown processing of the component mod_sftpd. The manipulation as part of a Big Payload leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on availability. CVE summarizes:

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.

The weakness was published 02/08/2011 by kingcope with ProFTPD Team (Website). The advisory is available at bugs.proftpd.org. This vulnerability is traded as CVE-2011-1137 since 03/02/2011. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed by kingcope and been published before and not just after the advisory. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 52600 (Debian DSA-2185-1 : proftpd-dfsg - integer overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 27359 (ProFTPD "mod_sftp" module and TLS implementation Vulnerabilities).

Upgrading to version 1.3.3d eliminates this vulnerability. The upgrade is hosted for download at proftpd.org. A possible mitigation has been published 4 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (16129), Tenable (52600), SecurityFocus (BID 46183†), OSVDB (70868†) and Secunia (SA43234†). Similar entry is available at VDB-56843. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: kingcope
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 52600
Nessus Name: Debian DSA-2185-1 : proftpd-dfsg - integer overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 69322
OpenVAS Name: Debian Security Advisory DSA 2185-1 (proftpd-dfsg)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: ProFTPD 1.3.3d

Timelineinfo

02/07/2011 🔍
02/07/2011 +0 days 🔍
02/07/2011 +0 days 🔍
02/07/2011 +0 days 🔍
02/08/2011 +1 days 🔍
02/08/2011 +0 days 🔍
02/08/2011 +0 days 🔍
02/12/2011 +3 days 🔍
02/16/2011 +4 days 🔍
03/02/2011 +14 days 🔍
03/10/2011 +8 days 🔍
03/11/2011 +1 days 🔍
03/13/2011 +2 days 🔍
08/25/2024 +4914 days 🔍

Sourcesinfo

Advisory: bugs.proftpd.org
Researcher: kingcope
Organization: ProFTPD Team
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1137 (🔍)
GCVE (CVE): GCVE-0-2011-1137
GCVE (VulDB): GCVE-100-4290

OVAL: 🔍

SecurityFocus: 46183 - ProFTPD 'mod_sftp' Module Integer Overflow Vulnerability
Secunia: 43234 - ProFTPD Two Vulnerabilities, Moderately Critical
OSVDB: 70868 - ProFTPD mod_sftp Component SSH Payload DoS
Vulnerability Center: 30290 - ProFTPD 1.3.3d and Earlier Remote Denial of Service Vulnerability via a Malformed SSH Message, Critical
Vupen: ADV-2011-0617

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 02/16/2011 10:54
Updated: 08/25/2024 16:21
Changes: 02/16/2011 10:54 (81), 03/18/2017 08:40 (23), 03/18/2021 19:36 (3), 08/25/2024 16:21 (14)
Complete: 🔍
Cache ID: 216:EBE:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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