Debian DSA-1222-2 : proftpd - several vulnerabilities - Nessus

Critical Plugin ID: 23757

This page contains detailed information about the Debian DSA-1222-2 : proftpd - several vulnerabilities Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 23757
Name: Debian DSA-1222-2 : proftpd - several vulnerabilities
Filename: debian_DSA-1222.nasl
Vulnerability Published: 2006-10-05
This Plugin Published: 2006-12-04
Last Modification Time: 2021-01-04
Plugin Version: 1.19
Plugin Type: local
Plugin Family: Debian Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/Debian/dpkg-l, Host/Debian/release, Host/local_checks_enabled

Vulnerability Information

Severity: Critical
Vulnerability Published: 2006-10-05
Patch Published: N/A
CVE [?]: CVE-2006-5815, CVE-2006-6170, CVE-2006-6171
CPE [?]: cpe:/o:debian:debian_linux:3.1, p-cpe:/a:debian:debian_linux:proftpd

Synopsis

The remote Debian host is missing a security-related update.

Description

Due to technical problems yesterday's proftpd update lacked a build for the amd64 architecture, which is now available. For reference please find below the original advisory text :

Several remote vulnerabilities have been discovered in the proftpd FTP daemon, which may lead to the execution of arbitrary code or denial of service. The Common Vulnerabilities and Exposures project identifies the following problems :

- CVE-2006-5815 It was discovered that a buffer overflow in the sreplace() function may lead to denial of service and possibly the execution of arbitrary code.

- CVE-2006-6170 It was discovered that a buffer overflow in the mod_tls addon module may lead to the execution of arbitrary code.

- CVE-2006-6171 It was discovered that insufficient validation of FTP command buffer size limits may lead to denial of service. Due to unclear information this issue was already fixed in DSA-1218 as CVE-2006-5815.

Solution

Upgrade the proftpd package.

For the stable distribution (sarge) these problems have been fixed in version 1.2.10-15sarge3.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, Exploit-DB, GitHub)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the Debian DSA-1222-2 : proftpd - several vulnerabilities vulnerability:

Metasploit: exploit/linux/ftp/proftp_sreplace
[ProFTPD 1.2 - 1.3.0 sreplace Buffer Overflow (Linux)]
Exploit-DB: exploits/linux/remote/16852.rb
[EDB-16852: ProFTPd 1.2 < 1.3.0 (Linux) - 'sreplace' Remote Buffer Overflow (Metasploit)]
GitHub: https://github.com/mudongliang/LinuxFlaw/tree/master/CVE-2006-5815
[CVE-2006-5815]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS V2 Vector [?]: AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Base Score:	10.0 (High)
Impact Subscore:	10.0
Exploitability Subscore:	10.0
CVSS Temporal Score:	NA (None)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	10.0 (High)

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Plugin Source

#%NASL_MIN_LEVEL 70300

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-1222. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(23757);
  script_version("1.19");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2006-5815", "CVE-2006-6170", "CVE-2006-6171");
  script_xref(name:"DSA", value:"1222");

  script_name(english:"Debian DSA-1222-2 : proftpd - several vulnerabilities");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Due to technical problems yesterday's proftpd update lacked a build
for the amd64 architecture, which is now available. For reference
please find below the original advisory text :

  Several remote vulnerabilities have been discovered in the proftpd
  FTP daemon, which may lead to the execution of arbitrary code or
  denial of service. The Common Vulnerabilities and Exposures project
  identifies the following problems :

    - CVE-2006-5815
      It was discovered that a buffer overflow in the
      sreplace() function may lead to denial of service and
      possibly the execution of arbitrary code.

    - CVE-2006-6170
      It was discovered that a buffer overflow in the
      mod_tls addon module may lead to the execution of
      arbitrary code.

    - CVE-2006-6171
      It was discovered that insufficient validation of FTP
      command buffer size limits may lead to denial of
      service. Due to unclear information this issue was
      already fixed in DSA-1218 as CVE-2006-5815."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=399070"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2006-5815"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2006-6170"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2006-6171"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2006-5815"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2006/dsa-1222"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the proftpd package.

For the stable distribution (sarge) these problems have been fixed in
version 1.2.10-15sarge3."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'ProFTPD 1.2 - 1.3.0 sreplace Buffer Overflow (Linux)');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_cwe_id(119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:proftpd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.1");

  script_set_attribute(attribute:"plugin_publication_date", value:"2006/12/04");
  script_set_attribute(attribute:"vuln_publication_date", value:"2006/10/05");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2021 Tenable Network Security, Inc.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"3.1", prefix:"proftpd", reference:"1.2.10-15sarge3")) flag++;
if (deb_check(release:"3.1", prefix:"proftpd-common", reference:"1.2.10-15sarge3")) flag++;
if (deb_check(release:"3.1", prefix:"proftpd-doc", reference:"1.2.10-15sarge3")) flag++;
if (deb_check(release:"3.1", prefix:"proftpd-ldap", reference:"1.2.10-15sarge3")) flag++;
if (deb_check(release:"3.1", prefix:"proftpd-mysql", reference:"1.2.10-15sarge3")) flag++;
if (deb_check(release:"3.1", prefix:"proftpd-pgsql", reference:"1.2.10-15sarge3")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/debian_DSA-1222.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\debian_DSA-1222.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/debian_DSA-1222.nasl

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How to Run

Here is how to run the Debian DSA-1222-2 : proftpd - several vulnerabilities as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select Debian Local Security Checks plugin family.
On the right side table select Debian DSA-1222-2 : proftpd - several vulnerabilities plugin ID 23757.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl debian_DSA-1222.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a debian_DSA-1222.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - debian_DSA-1222.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state debian_DSA-1222.nasl -t <IP/HOST>

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References

DSA | Debian Security Advisory:

1222

CWE | Common Weakness Enumeration:

CWE-119 (Weakness) Improper Restriction of Operations within the Bounds of a Memory Buffer

See also:

Similar and related Nessus plugins:

23952 - FreeBSD : proftpd -- remote code execution vulnerabilities (3f851b22-89fb-11db-a937-003048116330)
23762 - GLSA-200611-26 : ProFTPD: Remote execution of arbitrary code
24602 - Mandrake Linux Security Advisory : proftpd (MDKSA-2006:217-1)
27055 - ProFTPD < 1.3.0a Multiple Vulnerabilities
24660 - Slackware 10.0 / 10.1 / 10.2 / 11.0 / 8.1 / 9.0 / 9.1 : proftpd (SSA:2006-335-02)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file debian_DSA-1222.nasl version 1.19. For more plugins, visit the Nessus Plugin Library.

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Debian DSA-1222-2 : proftpd - several vulnerabilities - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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