4.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
22.9%
The remote host is affected by the vulnerability described in GLSA-200512-09 (cURL: Off-by-one errors in URL handling)
Stefan Esser from the Hardened-PHP Project has reported a vulnerability in cURL that allows for a local buffer overflow when cURL attempts to parse specially crafted URLs. The URL can be specially crafted in one of two ways: the URL could be malformed in a way that prevents a terminating null byte from being added to either a hostname or path buffer; or the URL could contain a '?' separator in the hostname portion, which causes a '/' to be prepended to the resulting string.
Impact :
An attacker capable of getting cURL to parse a maliciously crafted URL could cause a denial of service or execute arbitrary code with the privileges of the user making the call to cURL. An attacker could also escape open_basedir or safe_mode pseudo-restrictions when exploiting this problem from within a PHP program when PHP is compiled with libcurl.
Workaround :
There is no known workaround at this time.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200512-09.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(20329);
script_version("1.15");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2005-4077");
script_xref(name:"GLSA", value:"200512-09");
script_name(english:"GLSA-200512-09 : cURL: Off-by-one errors in URL handling");
script_summary(english:"Checks for updated package(s) in /var/db/pkg");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Gentoo host is missing one or more security-related
patches."
);
script_set_attribute(
attribute:"description",
value:
"The remote host is affected by the vulnerability described in GLSA-200512-09
(cURL: Off-by-one errors in URL handling)
Stefan Esser from the Hardened-PHP Project has reported a
vulnerability in cURL that allows for a local buffer overflow when cURL
attempts to parse specially crafted URLs. The URL can be specially
crafted in one of two ways: the URL could be malformed in a way that
prevents a terminating null byte from being added to either a hostname
or path buffer; or the URL could contain a '?' separator in the
hostname portion, which causes a '/' to be prepended to the resulting
string.
Impact :
An attacker capable of getting cURL to parse a maliciously crafted
URL could cause a denial of service or execute arbitrary code with the
privileges of the user making the call to cURL. An attacker could also
escape open_basedir or safe_mode pseudo-restrictions when exploiting
this problem from within a PHP program when PHP is compiled with
libcurl.
Workaround :
There is no known workaround at this time."
);
script_set_attribute(
attribute:"see_also",
value:"http://www.hardened-php.net/advisory_242005.109.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://security.gentoo.org/glsa/200512-09"
);
script_set_attribute(
attribute:"solution",
value:
"All cURL users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-misc/curl-7.15.1'"
);
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:curl");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2005/12/16");
script_set_attribute(attribute:"plugin_publication_date", value:"2005/12/20");
script_set_attribute(attribute:"vuln_publication_date", value:"2005/12/07");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2005-2021 Tenable Network Security, Inc.");
script_family(english:"Gentoo Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (qpkg_check(package:"net-misc/curl", unaffected:make_list("ge 7.15.1"), vulnerable:make_list("lt 7.15.1"))) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:qpkg_report_get());
else security_warning(0);
exit(0);
}
else
{
tested = qpkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "cURL");
}