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
89.0%
These packages fix a low severity flaw in the way ssh handles X11 cookies when creating X11 forwarding connections. When ssh was unable to create untrusted cookie, ssh used a trusted cookie instead, possibly allowing the administrative user of a untrusted remote server, or untrusted application run on the remote server, to gain unintended access to a users local X server. (CVE-2007-4752)
To address concerns about these, and past openssh packages, we have done an intensive review of the source rpm’s of these, and past openssh packages. Our conclusion is that these, and past packages have NOT been compromised. Either at the source level, or the compiled binary level.
#%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(60467);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2007-4752");
script_name(english:"Scientific Linux Security Update : openssh on SL4.x, SL5.x i386/x86_64");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Scientific Linux host is missing one or more security
updates."
);
script_set_attribute(
attribute:"description",
value:
"These packages fix a low severity flaw in the way ssh handles X11
cookies when creating X11 forwarding connections. When ssh was unable
to create untrusted cookie, ssh used a trusted cookie instead,
possibly allowing the administrative user of a untrusted remote
server, or untrusted application run on the remote server, to gain
unintended access to a users local X server. (CVE-2007-4752)
To address concerns about these, and past openssh packages, we have
done an intensive review of the source rpm's of these, and past
openssh packages. Our conclusion is that these, and past packages have
NOT been compromised. Either at the source level, or the compiled
binary level."
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind0808&L=scientific-linux-errata&T=0&P=1788
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?7d0dfcaf"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_cwe_id(20);
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:"2008/08/22");
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:"openssh-3.9p1-11.el4_7")) flag++;
if (rpm_check(release:"SL4", reference:"openssh-askpass-3.9p1-11.el4_7")) flag++;
if (rpm_check(release:"SL4", reference:"openssh-askpass-gnome-3.9p1-11.el4_7")) flag++;
if (rpm_check(release:"SL4", reference:"openssh-clients-3.9p1-11.el4_7")) flag++;
if (rpm_check(release:"SL4", reference:"openssh-server-3.9p1-11.el4_7")) flag++;
if (rpm_check(release:"SL5", reference:"openssh-4.3p2-26.el5_2.1")) flag++;
if (rpm_check(release:"SL5", reference:"openssh-askpass-4.3p2-26.el5_2.1")) flag++;
if (rpm_check(release:"SL5", reference:"openssh-clients-4.3p2-26.el5_2.1")) flag++;
if (rpm_check(release:"SL5", reference:"openssh-server-4.3p2-26.el5_2.1")) 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");