Vulnerabilities > CVE-2011-2704 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in multiple products

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
osgeo
umn
CWE-119
nessus

Summary

Stack-based buffer overflow in MapServer before 4.10.7 and 5.x before 5.6.7 allows remote attackers to execute arbitrary code via vectors related to OGC filter encoding.

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

NASL familyDebian Local Security Checks
NASL idDEBIAN_DSA-2285.NASL
descriptionSeveral vulnerabilities have been discovered in mapserver, a CGI-based web framework to publish spatial data and interactive mapping applications. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2011-2703 Several instances of insufficient escaping of user input, leading to SQL injection attacks via OGC filter encoding (in WMS, WFS, and SOS filters). - CVE-2011-2704 Missing length checks in the processing of OGC filter encoding that can lead to stack-based buffer overflows and the execution of arbitrary code.
last seen2020-03-17
modified2011-07-27
plugin id55694
published2011-07-27
reporterThis script is Copyright (C) 2011-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/55694
titleDebian DSA-2285-1 : mapserver - several vulnerabilities
code
#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2285. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(55694);
  script_version("1.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2011-2703", "CVE-2011-2704");
  script_bugtraq_id(48720);
  script_xref(name:"DSA", value:"2285");

  script_name(english:"Debian DSA-2285-1 : mapserver - 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:
"Several vulnerabilities have been discovered in mapserver, a CGI-based
web framework to publish spatial data and interactive mapping
applications. The Common Vulnerabilities and Exposures project
identifies the following problems :

  - CVE-2011-2703
    Several instances of insufficient escaping of user
    input, leading to SQL injection attacks via OGC filter
    encoding (in WMS, WFS, and SOS filters).

  - CVE-2011-2704
    Missing length checks in the processing of OGC filter
    encoding that can lead to stack-based buffer overflows
    and the execution of arbitrary code."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2011-2703"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2011-2704"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/mapserver"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2011/dsa-2285"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the mapserver packages.

For the oldstable distribution (lenny), these problems have been fixed
in version 5.0.3-3+lenny7.

For the stable distribution (squeeze), these problems have been fixed
in version 5.6.5-2+squeeze2."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:mapserver");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/07/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/07/27");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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:"5.0", prefix:"mapserver", reference:"5.0.3-3+lenny7")) flag++;
if (deb_check(release:"6.0", prefix:"cgi-mapserver", reference:"5.6.5-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libmapscript-ruby", reference:"5.6.5-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libmapscript-ruby1.8", reference:"5.6.5-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libmapscript-ruby1.9.1", reference:"5.6.5-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"mapserver-bin", reference:"5.6.5-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"mapserver-doc", reference:"5.6.5-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"perl-mapscript", reference:"5.6.5-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"php5-mapscript", reference:"5.6.5-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"python-mapscript", reference:"5.6.5-2+squeeze2")) 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");