Vulnerabilities > CVE-2013-6494 - Code vulnerability in Fedup Project Fedup 0.9.0
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
PARTIAL Summary
fedup 0.9.0 in Fedora 19, 20, and 21 uses a temporary directory with a static name for its download cache, which allows local users to cause a denial of service (prevention of system updates).
Vulnerable Configurations
Part | Description | Count |
---|---|---|
Application | 1 | |
OS | 3 |
Common Weakness Enumeration (CWE)
Nessus
NASL family Fedora Local Security Checks NASL id FEDORA_2014-14252.NASL description This update works around a serious problem in Fedora 21 Beta which makes systems automatically shut down 15 minutes into the upgrade. Other improvements : - Adds `--product=PRODUCT` flag, required for upgrades to F21 - Uses host last seen 2020-03-17 modified 2014-11-05 plugin id 78866 published 2014-11-05 reporter This script is Copyright (C) 2014-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/78866 title Fedora 19 : fedup-0.9.0-2.fc19 (2014-14252) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory 2014-14252. # include("compat.inc"); if (description) { script_id(78866); script_version("1.5"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12"); script_cve_id("CVE-2013-6494"); script_bugtraq_id(70874); script_xref(name:"FEDORA", value:"2014-14252"); script_name(english:"Fedora 19 : fedup-0.9.0-2.fc19 (2014-14252)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "This update works around a serious problem in Fedora 21 Beta which makes systems automatically shut down 15 minutes into the upgrade. Other improvements : - Adds `--product=PRODUCT` flag, required for upgrades to F21 - Uses host's config files in `upgrade.img`, which should fix various upgrade problems (e.g. incorrect keyboard layout when unlocking disks due to missing `vconsole.conf`) - Logging improvements: complete upgrade log should appear in system journal - Adds a warning for upgrades without a new kernel - Fixes a bunch of crashes Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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://bugzilla.redhat.com/show_bug.cgi?id=1066679" ); # https://lists.fedoraproject.org/pipermail/package-announce/2014-November/142698.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?caf4852c" ); script_set_attribute(attribute:"solution", value:"Update the affected fedup package."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P"); script_set_cvss_temporal_vector("CVSS2#E:ND/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:fedoraproject:fedora:fedup"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:19"); script_set_attribute(attribute:"patch_publication_date", value:"2014/11/05"); script_set_attribute(attribute:"plugin_publication_date", value:"2014/11/05"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2014-2020 Tenable Network Security, Inc."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! ereg(pattern:"^19([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 19.x", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC19", reference:"fedup-0.9.0-2.fc19")) flag++; if (flag) { if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get()); else security_note(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "fedup"); }
NASL family Fedora Local Security Checks NASL id FEDORA_2014-14347.NASL description This update works around a serious problem in Fedora 21 Beta which makes systems automatically shut down 15 minutes into the upgrade. Other improvements : - Adds `--product=PRODUCT` flag, required for upgrades to F21 - Uses host last seen 2020-03-17 modified 2014-11-10 plugin id 79077 published 2014-11-10 reporter This script is Copyright (C) 2014-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/79077 title Fedora 21 : fedup-0.9.0-2.fc21 (2014-14347) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory 2014-14347. # include("compat.inc"); if (description) { script_id(79077); script_version("1.5"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12"); script_cve_id("CVE-2013-6494"); script_bugtraq_id(70874); script_xref(name:"FEDORA", value:"2014-14347"); script_name(english:"Fedora 21 : fedup-0.9.0-2.fc21 (2014-14347)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "This update works around a serious problem in Fedora 21 Beta which makes systems automatically shut down 15 minutes into the upgrade. Other improvements : - Adds `--product=PRODUCT` flag, required for upgrades to F21 - Uses host's config files in `upgrade.img`, which should fix various upgrade problems (e.g. incorrect keyboard layout when unlocking disks due to missing `vconsole.conf`) - Logging improvements: complete upgrade log should appear in system journal Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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://bugzilla.redhat.com/show_bug.cgi?id=1066679" ); # https://lists.fedoraproject.org/pipermail/package-announce/2014-November/142933.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?8aede3a4" ); script_set_attribute(attribute:"solution", value:"Update the affected fedup package."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P"); script_set_cvss_temporal_vector("CVSS2#E:ND/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:fedoraproject:fedora:fedup"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:21"); script_set_attribute(attribute:"patch_publication_date", value:"2014/11/05"); script_set_attribute(attribute:"plugin_publication_date", value:"2014/11/10"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2014-2020 Tenable Network Security, Inc."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! ereg(pattern:"^21([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 21.x", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC21", reference:"fedup-0.9.0-2.fc21")) flag++; if (flag) { if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get()); else security_note(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "fedup"); }
NASL family Fedora Local Security Checks NASL id FEDORA_2014-14027.NASL description - Adds `--product=PRODUCT` flag, required for upgrades to F21 - Uses host last seen 2020-03-17 modified 2014-11-03 plugin id 78812 published 2014-11-03 reporter This script is Copyright (C) 2014-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/78812 title Fedora 20 : fedup-0.9.0-1.fc20 (2014-14027) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory 2014-14027. # include("compat.inc"); if (description) { script_id(78812); script_version("1.4"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12"); script_cve_id("CVE-2013-6494"); script_xref(name:"FEDORA", value:"2014-14027"); script_name(english:"Fedora 20 : fedup-0.9.0-1.fc20 (2014-14027)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: " - Adds `--product=PRODUCT` flag, required for upgrades to F21 - Uses host's config files in `upgrade.img`, which should fix various upgrade problems (e.g. incorrect keyboard layout when unlocking disks due to missing `vconsole.conf`) - Logging improvements: complete upgrade log should appear in system journal Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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://bugzilla.redhat.com/show_bug.cgi?id=1066679" ); # https://lists.fedoraproject.org/pipermail/package-announce/2014-November/141698.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?d7c95392" ); script_set_attribute(attribute:"solution", value:"Update the affected fedup package."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:fedup"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:20"); script_set_attribute(attribute:"patch_publication_date", value:"2014/11/01"); script_set_attribute(attribute:"plugin_publication_date", value:"2014/11/03"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2014-2020 Tenable Network Security, Inc."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! ereg(pattern:"^20([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 20.x", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC20", reference:"fedup-0.9.0-1.fc20")) flag++; if (flag) { if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get()); else security_note(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "fedup"); }
References
- http://lists.fedoraproject.org/pipermail/package-announce/2014-November/141698.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-November/142698.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-November/142933.html
- http://www.securityfocus.com/bid/70874
- https://bugzilla.redhat.com/show_bug.cgi?id=1066679
- https://github.com/wgwoods/fedup/issues/44