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
EPSS
Percentile
99.5%
An integer underflow vulnerability was discovered in the rdesktop. If an attacker could convince a victim to connect to a malicious RDP server, the attacker could cause the victimβs rdesktop to crash or, possibly, execute an arbitrary code. (CVE-2008-1801)
Additionally, the following bug was fixed :
A missing command line option caused rdesktop to fail when using the krdc remote desktop utility. Using krdc to connect to a terminal server resulted in errors such as the following :
The version of rdesktop you are using ([version]) is too old :
rdesktop [version] or greater is required. A working patch for rdesktop [version] can be found in KDE CVS.
In this updated package, krdc successfully connects to terminal servers.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(60384);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2008-1801");
script_name(english:"Scientific Linux Security Update : rdesktop on SL4.x i386/x86_64");
script_summary(english:"Checks rpm output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Scientific Linux host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"An integer underflow vulnerability was discovered in the rdesktop. If
an attacker could convince a victim to connect to a malicious RDP
server, the attacker could cause the victim's rdesktop to crash or,
possibly, execute an arbitrary code. (CVE-2008-1801)
Additionally, the following bug was fixed :
A missing command line option caused rdesktop to fail when using the
krdc remote desktop utility. Using krdc to connect to a terminal
server resulted in errors such as the following :
The version of rdesktop you are using ([version]) is too old :
rdesktop [version] or greater is required. A working patch for
rdesktop [version] can be found in KDE CVS.
In this updated package, krdc successfully connects to terminal
servers."
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind0807&L=scientific-linux-errata&T=0&P=2625
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?60ad6e71"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected rdesktop package."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_cwe_id(189);
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"patch_publication_date", value:"2008/04/16");
script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Scientific Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "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) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
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 (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
flag = 0;
if (rpm_check(release:"SL4", reference:"rdesktop-1.3.1-9")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");