Vulnerabilities > CVE-2003-0452 - Local Security vulnerability in Osh

047910
CVSS 4.6 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
local
low complexity
gunnar-ritter
nessus

Summary

Buffer overflows in osh before 1.7-11 allow local users to execute arbitrary code and bypass shell restrictions via (1) long environment variables or (2) long "file redirections."

Vulnerable Configurations

Part Description Count
Application
Gunnar_Ritter
1

Nessus

NASL familyDebian Local Security Checks
NASL idDEBIAN_DSA-329.NASL
descriptionSteve Kemp discovered that osh, a shell intended to restrict the actions of the user, contains two buffer overflows, in processing environment variables and file redirections. These vulnerabilities could be used to execute arbitrary code, overriding any restrictions placed on the shell.
last seen2020-06-01
modified2020-06-02
plugin id15166
published2004-09-29
reporterThis script is Copyright (C) 2004-2019 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/15166
titleDebian DSA-329-1 : osh - buffer overflows
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-329. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(15166);
  script_version("1.22");
  script_cvs_date("Date: 2019/08/02 13:32:17");

  script_cve_id("CVE-2003-0452");
  script_bugtraq_id(7992, 7993);
  script_xref(name:"DSA", value:"329");

  script_name(english:"Debian DSA-329-1 : osh - buffer overflows");
  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:
"Steve Kemp discovered that osh, a shell intended to restrict the
actions of the user, contains two buffer overflows, in processing
environment variables and file redirections. These vulnerabilities
could be used to execute arbitrary code, overriding any restrictions
placed on the shell."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2003/dsa-329"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"For the stable distribution (woody) this problem has been fixed in
version 1.7-11woody1.

The old stable distribution (potato) is affected by this problem, and
may be fixed in a future advisory on a time-available basis.

We recommend that you update your osh package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/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:osh");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2003/06/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/09/29");
  script_set_attribute(attribute:"vuln_publication_date", value:"2003/06/20");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2019 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:"3.0", prefix:"osh", reference:"1.7-11woody1")) flag++;

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

Seebug

bulletinFamilyexploit
descriptionNo description provided by source.
idSSV:15453
last seen2017-11-19
modified2005-02-05
published2005-02-05
reporterRoot
sourcehttps://www.seebug.org/vuldb/ssvid-15453
titleOperator Shell (osh) 1.7-12 Local Root Exploit