Vulnerabilities > CVE-2007-2654 - Race Condition vulnerability in multiple products
Attack vector
LOCAL Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
xfs_fsr in xfsdump creates a .fsr temporary directory with insecure permissions, which allows local users to read or overwrite arbitrary files on xfs filesystems.
Vulnerable Configurations
Part | Description | Count |
---|---|---|
OS | 26 | |
Application | 4 | |
Application | 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 family Mandriva Local Security Checks NASL id MANDRAKE_MDKSA-2007-134.NASL description xfs_fsr in xfsdump creates a .fsr temporary directory with insecure permissions, which allows local users to read or overwrite arbitrary files on xfs filesystems. Updated packages have been patched to prevent this issue. last seen 2020-06-01 modified 2020-06-02 plugin id 25600 published 2007-06-27 reporter This script is Copyright (C) 2007-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/25600 title Mandrake Linux Security Advisory : xfsdump (MDKSA-2007:134) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Mandrake Linux Security Advisory MDKSA-2007:134. # The text itself is copyright (C) Mandriva S.A. # include("compat.inc"); if (description) { script_id(25600); script_version ("1.15"); script_cvs_date("Date: 2019/08/02 13:32:49"); script_cve_id("CVE-2007-2654"); script_xref(name:"MDKSA", value:"2007:134"); script_name(english:"Mandrake Linux Security Advisory : xfsdump (MDKSA-2007:134)"); script_summary(english:"Checks rpm output for the updated package"); script_set_attribute( attribute:"synopsis", value:"The remote Mandrake Linux host is missing a security update." ); script_set_attribute( attribute:"description", value: "xfs_fsr in xfsdump creates a .fsr temporary directory with insecure permissions, which allows local users to read or overwrite arbitrary files on xfs filesystems. Updated packages have been patched to prevent this issue." ); script_set_attribute( attribute:"solution", value:"Update the affected xfsdump package." ); script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P"); script_cwe_id(362); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:xfsdump"); script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2007"); script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2007.1"); script_set_attribute(attribute:"patch_publication_date", value:"2007/06/21"); script_set_attribute(attribute:"plugin_publication_date", value:"2007/06/27"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2007-2019 Tenable Network Security, Inc."); script_family(english:"Mandriva Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux"); if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu); flag = 0; if (rpm_check(release:"MDK2007.0", reference:"xfsdump-2.2.42-2.1mdv2007.0", yank:"mdv")) flag++; if (rpm_check(release:"MDK2007.1", reference:"xfsdump-2.2.42-3.1mdv2007.1", yank:"mdv")) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get()); else security_warning(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");
NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-516-1.NASL description Paul Martin discovered that xfs_fsr creates a temporary directory with insecure permissions. This allows a local attacker to exploit a race condition in xfs_fsr to read or overwrite arbitrary files on xfs filesystems. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 28121 published 2007-11-10 reporter Ubuntu Security Notice (C) 2007-2019 Canonical, Inc. / NASL script (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/28121 title Ubuntu 6.06 LTS / 6.10 / 7.04 : xfsdump vulnerability (USN-516-1) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Ubuntu Security Notice USN-516-1. The text # itself is copyright (C) Canonical, Inc. See # <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered # trademark of Canonical, Inc. # include("compat.inc"); if (description) { script_id(28121); script_version("1.14"); script_cvs_date("Date: 2019/08/02 13:33:01"); script_cve_id("CVE-2007-2654"); script_xref(name:"USN", value:"516-1"); script_name(english:"Ubuntu 6.06 LTS / 6.10 / 7.04 : xfsdump vulnerability (USN-516-1)"); script_summary(english:"Checks dpkg output for updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Ubuntu host is missing a security-related patch." ); script_set_attribute( attribute:"description", value: "Paul Martin discovered that xfs_fsr creates a temporary directory with insecure permissions. This allows a local attacker to exploit a race condition in xfs_fsr to read or overwrite arbitrary files on xfs filesystems. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://usn.ubuntu.com/516-1/" ); script_set_attribute( attribute:"solution", value:"Update the affected xfsdump package." ); script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P"); script_cwe_id(362); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:xfsdump"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:6.06:-:lts"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:6.10"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:7.04"); script_set_attribute(attribute:"patch_publication_date", value:"2007/09/20"); script_set_attribute(attribute:"plugin_publication_date", value:"2007/11/10"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"Ubuntu Security Notice (C) 2007-2019 Canonical, Inc. / NASL script (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Ubuntu Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l"); exit(0); } include("audit.inc"); include("ubuntu.inc"); include("misc_func.inc"); if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/Ubuntu/release"); if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu"); release = chomp(release); if (! ereg(pattern:"^(6\.06|6\.10|7\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 6.06 / 6.10 / 7.04", "Ubuntu " + release); if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu); flag = 0; if (ubuntu_check(osver:"6.06", pkgname:"xfsdump", pkgver:"2.2.30-1ubuntu0.1")) flag++; if (ubuntu_check(osver:"6.10", pkgname:"xfsdump", pkgver:"2.2.38-1ubuntu0.6.10.1")) flag++; if (ubuntu_check(osver:"7.04", pkgname:"xfsdump", pkgver:"2.2.38-1ubuntu0.7.04.1")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_WARNING, extra : ubuntu_report_get() ); exit(0); } else { tested = ubuntu_pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xfsdump"); }
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=417894
- http://osvdb.org/36716
- http://secunia.com/advisories/25220
- http://secunia.com/advisories/25425
- http://secunia.com/advisories/25761
- http://secunia.com/advisories/26867
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:134
- http://www.novell.com/linux/security/advisories/2007_10_sr.html
- http://www.securityfocus.com/bid/23922
- http://www.ubuntu.com/usn/usn-516-1