ID FEDORA_2017-BC2EDC421D.NASL Type nessus Reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. Modified 2019-11-02T00:00:00
Description
update to upstream release 0.3.1.9. Fixes various CVEs :
CVE-2017-8819: Replay-cache ineffective for v2 onion
services
CVE-2017-8820: Remote DoS attack against directory
authorities
CVE-2017-8821: An attacker can make Tor ask for a
password
CVE-2017-8822: Relays can pick themselves in a circuit
path
CVE-2017-8823: Use-after-free in onion service v2
Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as
possible without introducing additional issues.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Fedora Security Advisory FEDORA-2017-bc2edc421d.
#
include("compat.inc");
if (description)
{
script_id(105965);
script_version("1.3");
script_cvs_date("Date: 2019/09/24 14:09:09");
script_cve_id("CVE-2017-8819", "CVE-2017-8820", "CVE-2017-8821", "CVE-2017-8822", "CVE-2017-8823");
script_xref(name:"FEDORA", value:"2017-bc2edc421d");
script_name(english:"Fedora 27 : tor (2017-bc2edc421d)");
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:
"update to upstream release 0.3.1.9. Fixes various CVEs :
- CVE-2017-8819: Replay-cache ineffective for v2 onion
services
- CVE-2017-8820: Remote DoS attack against directory
authorities
- CVE-2017-8821: An attacker can make Tor ask for a
password
- CVE-2017-8822: Relays can pick themselves in a circuit
path
- CVE-2017-8823: Use-after-free in onion service v2
Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
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://bodhi.fedoraproject.org/updates/FEDORA-2017-bc2edc421d"
);
script_set_attribute(attribute:"solution", value:"Update the affected tor package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:tor");
script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:27");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/12/03");
script_set_attribute(attribute:"patch_publication_date", value:"2017/12/17");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/15");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
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 = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^27([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 27", "Fedora " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);
flag = 0;
if (rpm_check(release:"FC27", reference:"tor-0.3.1.9-1.fc27")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "tor");
}
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Fixes various CVEs :\n\n - CVE-2017-8819: Replay-cache ineffective for v2 onion\n services\n\n - CVE-2017-8820: Remote DoS attack against directory\n authorities\n\n - CVE-2017-8821: An attacker can make Tor ask for a\n password\n\n - CVE-2017-8822: Relays can pick themselves in a circuit\n path\n\n - CVE-2017-8823: Use-after-free in onion service v2\n\nNote that Tenable Network Security has extracted the preceding\ndescription block directly from the Fedora update system website.\nTenable has attempted to automatically clean and format it as much as\npossible without introducing additional issues.", "published": "2018-01-15T00:00:00", "modified": "2019-11-02T00:00:00", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}, "href": "https://www.tenable.com/plugins/nessus/105965", "reporter": "This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.", "references": ["https://bodhi.fedoraproject.org/updates/FEDORA-2017-bc2edc421d"], "cvelist": ["CVE-2017-8819", "CVE-2017-8820", "CVE-2017-8821", "CVE-2017-8823", "CVE-2017-8822"], "type": "nessus", "lastseen": "2019-11-01T02:28:45", "history": [{"bulletin": {"bulletinFamily": "scanner", "cpe": ["cpe:/o:fedoraproject:fedora:27", "p-cpe:/a:fedoraproject:fedora:tor"], "cvelist": ["CVE-2017-8819", "CVE-2017-8820", "CVE-2017-8821", "CVE-2017-8823", "CVE-2017-8822"], "cvss": {"score": 6.8, "vector": "AV:NETWORK/AC:MEDIUM/Au:NONE/C:PARTIAL/I:PARTIAL/A:PARTIAL/"}, "description": "update to upstream release 0.3.1.9. Fixes various CVEs :\n\n - CVE-2017-8819: Replay-cache ineffective for v2 onion services\n\n - CVE-2017-8820: Remote DoS attack against directory authorities\n\n - CVE-2017-8821: An attacker can make Tor ask for a password\n\n - CVE-2017-8822: Relays can pick themselves in a circuit path\n\n - CVE-2017-8823: Use-after-free in onion service v2\n\nNote that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.\nTenable has attempted to automatically clean and format it as much as possible without introducing additional issues.", "edition": 6, "enchantments": {"dependencies": {"modified": "2019-02-21T01:35:37", "references": [{"idList": ["36EF8753-D86F-11E7-AD28-0025908740C2"], "type": "freebsd"}, {"idList": ["DEBIAN:DSA-4054-1:F9262"], "type": "debian"}, {"idList": ["CVE-2017-8819", "CVE-2017-8820", "CVE-2017-8821", "CVE-2017-8823", "CVE-2017-8822"], "type": "cve"}, {"idList": ["OPENVAS:1361412562310704054", "OPENVAS:1361412562310873925", "OPENVAS:1361412562310873922"], "type": "openvas"}, {"idList": ["FREEBSD_PKG_36EF8753D86F11E7AD280025908740C2.NASL", "FEDORA_2017-BCE9E03721.NASL", "OPENSUSE-2017-1336.NASL", "DEBIAN_DSA-4054.NASL"], "type": "nessus"}]}, "score": {"modified": "2019-02-21T01:35:37", "value": 5.3, "vector": "NONE"}}, "hash": "e1a1268b7a76d1a50e075b1082d77f618732acf1509814c66c69c784fa996844", "hashmap": [{"hash": "db40133648dd31e5e71f72e7857919d4", "key": "pluginID"}, {"hash": "9fff8057eb5fbfbed37e1ceda9671194", "key": "references"}, {"hash": "c8cb35dab4016a5d380f8aaca8abe469", "key": "cvelist"}, {"hash": "9cf00d658b687f030ebe173a0528c567", "key": "reporter"}, {"hash": "79f7ddef446cd9f42c5e7743d97a7392", "key": "sourceData"}, {"hash": "847d42a903fb32e386e64cfb00bfac4a", "key": "title"}, {"hash": "3fcf3472ec23d37b4712de598fcb8d16", "key": "published"}, {"hash": "77e6b7ea66af56cd422b65f95d4d1158", "key": "href"}, {"hash": "bbdaea376f500d25f6b0c1050311dd07", "key": "bulletinFamily"}, {"hash": "5e0bd03bec244039678f2b955a2595aa", "key": "type"}, {"hash": "be931514784f88df80712740ad2723e7", "key": "naslFamily"}, {"hash": "e5ea4e133fdd22d0dad25dd00662de7f", "key": "modified"}, {"hash": "737e2591b537c46d1ca7ce6f0cea5cb9", "key": "cvss"}, {"hash": "006133b657c1e053bec08e8daeffa56c", "key": "description"}, {"hash": "7d3d9c69755b387fd8d282d5f3925c9d", "key": "cpe"}], "history": [], "href": "https://www.tenable.com/plugins/index.php?view=single&id=105965", "id": "FEDORA_2017-BC2EDC421D.NASL", "lastseen": "2019-02-21T01:35:37", "modified": "2018-02-02T00:00:00", "naslFamily": "Fedora Local Security Checks", "objectVersion": "1.3", "pluginID": "105965", "published": "2018-01-15T00:00:00", "references": ["https://bodhi.fedoraproject.org/updates/FEDORA-2017-bc2edc421d"], "reporter": "Tenable", "sourceData": "#\n# (C) Tenable Network Security, Inc.\n#\n# The descriptive text and package checks in this plugin were \n# extracted from Fedora Security Advisory FEDORA-2017-bc2edc421d.\n#\n\ninclude(\"compat.inc\");\n\nif (description)\n{\n script_id(105965);\n script_version(\"$Revision: 1.2 $\");\n script_cvs_date(\"$Date: 2018/02/02 14:59:05 $\");\n\n script_cve_id(\"CVE-2017-8819\", \"CVE-2017-8820\", \"CVE-2017-8821\", \"CVE-2017-8822\", \"CVE-2017-8823\");\n script_xref(name:\"FEDORA\", value:\"2017-bc2edc421d\");\n\n script_name(english:\"Fedora 27 : tor (2017-bc2edc421d)\");\n script_summary(english:\"Checks rpm output for the updated package.\");\n\n script_set_attribute(\n attribute:\"synopsis\", \n value:\"The remote Fedora host is missing a security update.\"\n );\n script_set_attribute(\n attribute:\"description\", \n value:\n\"update to upstream release 0.3.1.9. Fixes various CVEs :\n\n - CVE-2017-8819: Replay-cache ineffective for v2 onion\n services\n\n - CVE-2017-8820: Remote DoS attack against directory\n authorities\n\n - CVE-2017-8821: An attacker can make Tor ask for a\n password\n\n - CVE-2017-8822: Relays can pick themselves in a circuit\n path\n\n - CVE-2017-8823: Use-after-free in onion service v2\n\nNote that Tenable Network Security has extracted the preceding\ndescription block directly from the Fedora update system website.\nTenable has attempted to automatically clean and format it as much as\npossible without introducing additional issues.\"\n );\n script_set_attribute(\n attribute:\"see_also\",\n value:\"https://bodhi.fedoraproject.org/updates/FEDORA-2017-bc2edc421d\"\n );\n script_set_attribute(attribute:\"solution\", value:\"Update the affected tor package.\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:fedoraproject:fedora:tor\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:fedoraproject:fedora:27\");\n\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2017/12/17\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2018/01/15\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_copyright(english:\"This script is Copyright (C) 2018 Tenable Network Security, Inc.\");\n script_family(english:\"Fedora Local Security Checks\");\n\n script_dependencies(\"ssh_get_info.nasl\");\n script_require_keys(\"Host/local_checks_enabled\", \"Host/RedHat/release\", \"Host/RedHat/rpm-list\");\n\n exit(0);\n}\n\n\ninclude(\"audit.inc\");\ninclude(\"global_settings.inc\");\ninclude(\"rpm.inc\");\n\n\nif (!get_kb_item(\"Host/local_checks_enabled\")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);\nrelease = get_kb_item(\"Host/RedHat/release\");\nif (isnull(release) || \"Fedora\" >!< release) audit(AUDIT_OS_NOT, \"Fedora\");\nos_ver = eregmatch(pattern: \"Fedora.*release ([0-9]+)\", string:release);\nif (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, \"Fedora\");\nos_ver = os_ver[1];\nif (! ereg(pattern:\"^27([^0-9]|$)\", string:os_ver)) audit(AUDIT_OS_NOT, \"Fedora 27\", \"Fedora \" + os_ver);\n\nif (!get_kb_item(\"Host/RedHat/rpm-list\")) audit(AUDIT_PACKAGE_LIST_MISSING);\n\n\ncpu = get_kb_item(\"Host/cpu\");\nif (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);\nif (\"x86_64\" >!< cpu && cpu !~ \"^i[3-6]86$\") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, \"Fedora\", cpu);\n\n\nflag = 0;\nif (rpm_check(release:\"FC27\", reference:\"tor-0.3.1.9-1.fc27\")) flag++;\n\n\nif (flag)\n{\n security_report_v4(\n port : 0,\n severity : SECURITY_WARNING,\n extra : rpm_report_get()\n );\n exit(0);\n}\nelse\n{\n tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, \"tor\");\n}\n", "title": "Fedora 27 : tor (2017-bc2edc421d)", "type": "nessus", "viewCount": 1}, "differentElements": ["cvss", "description", "reporter", "modified", "sourceData", "href"], "edition": 6, "lastseen": "2019-02-21T01:35:37"}, {"bulletin": {"bulletinFamily": "scanner", "cpe": ["cpe:/o:fedoraproject:fedora:27", "p-cpe:/a:fedoraproject:fedora:tor"], "cvelist": ["CVE-2017-8819", "CVE-2017-8820", "CVE-2017-8821", "CVE-2017-8823", "CVE-2017-8822"], "cvss": {"score": 6.8, "vector": "AV:NETWORK/AC:MEDIUM/Au:NONE/C:PARTIAL/I:PARTIAL/A:PARTIAL/"}, "description": "update to upstream release 0.3.1.9. 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