It was found that Squid configured with client-first SSL-bump did not correctly validate X.509 server certificate host name fields. A man-in- the-middle attacker could use this flaw to spoof a Squid server using a specially crafted X.509 certificate. (CVE-2015-3455)
This update fixes the following bugs :
Previously, the squid process did not handle file descriptors correctly when receiving Simple Network Management Protocol (SNMP) requests. As a consequence, the process gradually accumulated open file descriptors.
This bug has been fixed and squid now handles SNMP requests correctly, closing file descriptors when necessary.
Under high system load, the squid process sometimes terminated unexpectedly with a segmentation fault during reboot. This update provides better memory handling during reboot, thus fixing this bug.
After installing this update, the squid service will be restarted automatically.
#%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(87574);
script_version("2.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2015-3455");
script_name(english:"Scientific Linux Security Update : squid on SL7.x x86_64 (20151119)");
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:
"It was found that Squid configured with client-first SSL-bump did not
correctly validate X.509 server certificate host name fields. A
man-in- the-middle attacker could use this flaw to spoof a Squid
server using a specially crafted X.509 certificate. (CVE-2015-3455)
This update fixes the following bugs :
- Previously, the squid process did not handle file
descriptors correctly when receiving Simple Network
Management Protocol (SNMP) requests. As a consequence,
the process gradually accumulated open file descriptors.
This bug has been fixed and squid now handles SNMP
requests correctly, closing file descriptors when
necessary.
- Under high system load, the squid process sometimes
terminated unexpectedly with a segmentation fault during
reboot. This update provides better memory handling
during reboot, thus fixing this bug.
After installing this update, the squid service will be restarted
automatically."
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1512&L=scientific-linux-errata&F=&S=&P=15001
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?b91f1e14"
);
script_set_attribute(
attribute:"solution",
value:
"Update the affected squid, squid-debuginfo and / or squid-sysvinit
packages."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:N/I:P/A:N");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:squid");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:squid-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:squid-sysvinit");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"vuln_publication_date", value:"2015/05/18");
script_set_attribute(attribute:"patch_publication_date", value:"2015/11/19");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/22");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2021 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("misc_func.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");
os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 7.x", "Scientific Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);
flag = 0;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"squid-3.3.8-26.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"squid-debuginfo-3.3.8-26.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"squid-sysvinit-3.3.8-26.el7")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_NOTE,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "squid / squid-debuginfo / squid-sysvinit");
}
Vendor | Product | Version | CPE |
---|---|---|---|
fermilab | scientific_linux | squid | p-cpe:/a:fermilab:scientific_linux:squid |
fermilab | scientific_linux | squid-debuginfo | p-cpe:/a:fermilab:scientific_linux:squid-debuginfo |
fermilab | scientific_linux | squid-sysvinit | p-cpe:/a:fermilab:scientific_linux:squid-sysvinit |
fermilab | scientific_linux | x-cpe:/o:fermilab:scientific_linux |