Vulnerabilities > CVE-2008-1570 - Race Condition vulnerability in Policyd-Weight 0.1.14Beta14

047910
CVSS 6.9 - MEDIUM
Attack vector
LOCAL
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
local
policyd-weight
CWE-362
nessus
NVD
Published: 2008-03-31
Updated: 2017-08-08

Summary

Race condition in the create_lockpath function in policyd-weight 0.1.14 beta-16 allows local users to modify or delete arbitrary files by creating the LOCKPATH directory, then modifying it after the symbolic link check occurs. NOTE: this is due to an incomplete fix for CVE-2008-1569.

Vulnerable Configurations

Part Description Count
Application
Policyd-Weight
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Leveraging Race Conditions
    This attack targets a race condition occurring when multiple processes access and manipulate the same resource concurrently and the outcome of the execution depends on the particular order in which the access takes place. The attacker can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance a race condition can occur while accessing a file, the attacker can trick the system by replacing the original file with his version and cause the system to read the malicious file.
  • Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
    This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. The typical example is the file access. The attacker can leverage a file access race condition by "running the race", meaning that he would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the attacker could do something such as replace the file and cause an escalation of privilege.

Nessus

NASL familyDebian Local Security Checks
NASL idDEBIAN_DSA-1531.NASL
descriptionChris Howells discovered that policyd-weight, a policy daemon for the Postfix mail transport agent, created its socket in an insecure way, which may be exploited to overwrite or remove arbitrary files from the local system.
last seen2020-06-01
modified2020-06-02
plugin id31687
published2008-03-28
reporterThis script is Copyright (C) 2008-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/31687
titleDebian DSA-1531-2 : policyd-weight - insecure temporary files
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-1531. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(31687);
  script_version("1.16");
  script_cvs_date("Date: 2019/08/02 13:32:21");

  script_cve_id("CVE-2008-1569", "CVE-2008-1570");
  script_xref(name:"DSA", value:"1531");

  script_name(english:"Debian DSA-1531-2 : policyd-weight - insecure temporary files");
  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:
"Chris Howells discovered that policyd-weight, a policy daemon for the
Postfix mail transport agent, created its socket in an insecure way,
which may be exploited to overwrite or remove arbitrary files from the
local system."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2008/dsa-1531"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the policyd-weight package.

For the stable distribution (etch), this problem has been fixed in
version 0.1.14-beta-6etch2.

The old stable distribution (sarge) does not contain a policyd-weight
package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_cwe_id(59, 362);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:policyd-weight");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:4.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/03/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/03/28");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 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:"4.0", prefix:"policyd-weight", reference:"0.1.14-beta-6etch2")) 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");

References