CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS
Percentile
93.5%
Several vulnerabilities have been discovered in the interpreter for the Ruby language, which may lead to the bypass of security restrictions or denial of service. The Common Vulnerabilities and Exposures project identifies the following problems :
CVE-2006-1931 It was discovered that the use of blocking sockets can lead to denial of service.
CVE-2006-3964 It was discovered that Ruby does not properly maintain ‘safe levels’ for aliasing, directory accesses and regular expressions, which might lead to a bypass of security restrictions.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-1157. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(22699);
script_version("1.16");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2006-1931", "CVE-2006-3694");
script_xref(name:"DSA", value:"1157");
script_name(english:"Debian DSA-1157-1 : ruby1.8 - several vulnerabilities");
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:
"Several vulnerabilities have been discovered in the interpreter for
the Ruby language, which may lead to the bypass of security
restrictions or denial of service. The Common Vulnerabilities and
Exposures project identifies the following problems :
- CVE-2006-1931
It was discovered that the use of blocking sockets can
lead to denial of service.
- CVE-2006-3964
It was discovered that Ruby does not properly maintain
'safe levels' for aliasing, directory accesses and
regular expressions, which might lead to a bypass of
security restrictions."
);
script_set_attribute(
attribute:"see_also",
value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=378029"
);
script_set_attribute(
attribute:"see_also",
value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=365520"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2006-1931"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2006-3964"
);
script_set_attribute(
attribute:"see_also",
value:"http://www.debian.org/security/2006/dsa-1157"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the Ruby packages.
For the stable distribution (sarge) these problems have been fixed in
version 1.8.2-7sarge4."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ruby1.8");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.1");
script_set_attribute(attribute:"patch_publication_date", value:"2006/08/27");
script_set_attribute(attribute:"plugin_publication_date", value:"2006/10/14");
script_set_attribute(attribute:"vuln_publication_date", value:"2005/11/21");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2006-2021 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:"3.1", prefix:"irb1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libdbm-ruby1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libgdbm-ruby1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libopenssl-ruby1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libreadline-ruby1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libruby1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libruby1.8-dbg", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libtcltk-ruby1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"rdoc1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"ri1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"ruby1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"ruby1.8-dev", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"ruby1.8-elisp", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"ruby1.8-examples", reference:"1.8.2-7sarge4")) 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");
bugs.debian.org/cgi-bin/bugreport.cgi?bug=365520
bugs.debian.org/cgi-bin/bugreport.cgi?bug=378029
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1931
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3694
www.debian.org/security/2006/dsa-1157
security-tracker.debian.org/tracker/CVE-2006-1931
security-tracker.debian.org/tracker/CVE-2006-3964