CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
98.8%
Several vulnerabilities have been discovered in the interpreter for the Ruby language. The Common Vulnerabilities and Exposures project identifies the following problems :
CVE-2017-17405
A command injection vulnerability in Net::FTP might allow a malicious FTP server the execution of arbitrary commands.
CVE-2017-17790
A command injection vulnerability in lib/resolv.rb’s lazy_initialze might allow a command injection attack. However untrusted input to this function is rather unlikely.
For Debian 7 ‘Wheezy’, these problems have been fixed in version 1.9.3.194-8.1+deb7u7.
We recommend that you upgrade your ruby1.9.1 packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1221-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(105428);
script_version("3.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2017-17405", "CVE-2017-17790");
script_name(english:"Debian DLA-1221-1 : ruby1.9.1 security update");
script_summary(english:"Checks dpkg output for the updated packages.");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"Several vulnerabilities have been discovered in the interpreter for
the Ruby language. The Common Vulnerabilities and Exposures project
identifies the following problems :
CVE-2017-17405
A command injection vulnerability in Net::FTP might allow a malicious
FTP server the execution of arbitrary commands.
CVE-2017-17790
A command injection vulnerability in lib/resolv.rb's lazy_initialze
might allow a command injection attack. However untrusted input to
this function is rather unlikely.
For Debian 7 'Wheezy', these problems have been fixed in version
1.9.3.194-8.1+deb7u7.
We recommend that you upgrade your ruby1.9.1 packages.
NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA 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://lists.debian.org/debian-lts-announce/2017/12/msg00025.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/wheezy/ruby1.9.1"
);
script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libruby1.9.1");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libruby1.9.1-dbg");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libtcltk-ruby1.9.1");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ri1.9.1");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ruby1.9.1");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ruby1.9.1-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ruby1.9.1-examples");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ruby1.9.1-full");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ruby1.9.3");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
script_set_attribute(attribute:"patch_publication_date", value:"2017/12/25");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/12/26");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2021 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:"7.0", prefix:"libruby1.9.1", reference:"1.9.3.194-8.1+deb7u7")) flag++;
if (deb_check(release:"7.0", prefix:"libruby1.9.1-dbg", reference:"1.9.3.194-8.1+deb7u7")) flag++;
if (deb_check(release:"7.0", prefix:"libtcltk-ruby1.9.1", reference:"1.9.3.194-8.1+deb7u7")) flag++;
if (deb_check(release:"7.0", prefix:"ri1.9.1", reference:"1.9.3.194-8.1+deb7u7")) flag++;
if (deb_check(release:"7.0", prefix:"ruby1.9.1", reference:"1.9.3.194-8.1+deb7u7")) flag++;
if (deb_check(release:"7.0", prefix:"ruby1.9.1-dev", reference:"1.9.3.194-8.1+deb7u7")) flag++;
if (deb_check(release:"7.0", prefix:"ruby1.9.1-examples", reference:"1.9.3.194-8.1+deb7u7")) flag++;
if (deb_check(release:"7.0", prefix:"ruby1.9.1-full", reference:"1.9.3.194-8.1+deb7u7")) flag++;
if (deb_check(release:"7.0", prefix:"ruby1.9.3", reference:"1.9.3.194-8.1+deb7u7")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
98.8%