An updated Squid package that fixes several security issues is now available.
Squid is a full-featured Web proxy cache.
A buffer overflow flaw was found in the Gopher relay parser. This bug could allow a remote Gopher server to crash the Squid proxy that reads data from it. Although Gopher servers are now quite rare, a malicious web page (for example) could redirect or contain a frame pointing to an attacker’s malicious gopher server. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0094 to this issue.
An integer overflow flaw was found in the WCCP message parser. It is possible to crash the Squid server if an attacker is able to send a malformed WCCP message with a spoofed source address matching Squid’s ‘home router’. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0095 to this issue.
A memory leak was found in the NTLM fakeauth_auth helper. It is possible that an attacker could place the Squid server under high load, causing the NTML fakeauth_auth helper to consume a large amount of memory, resulting in a denial of service. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0096 to this issue.
A NULL pointer de-reference bug was found in the NTLM fakeauth_auth helper. It is possible for an attacker to send a malformed NTLM type 3 message, causing the Squid server to crash. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0097 to this issue.
A username validation bug was found in squid_ldap_auth. It is possible for a username to be padded with spaces, which could allow a user to bypass explicit access control rules or confuse accounting. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0173 to this issue.
The way Squid handles HTTP responses was found to need strengthening.
It is possible that a malicious web server could send a series of HTTP responses in such a way that the Squid cache could be poisoned, presenting users with incorrect webpages. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2005-0174 and CVE-2005-0175 to these issues.
A bug was found in the way Squid handled oversized HTTP response headers. It is possible that a malicious web server could send a specially crafted HTTP header which could cause the Squid cache to be poisoned, presenting users with incorrect webpages. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0241 to this issue.
A buffer overflow bug was found in the WCCP message parser. It is possible that an attacker could send a malformed WCCP message which could crash the Squid server or execute arbitrary code. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0211 to this issue.
Users of Squid should upgrade to this updated package, which contains backported patches, and is not vulnerable to these issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2005:061. The text
# itself is copyright (C) Red Hat, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(16384);
script_version("1.25");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2005-0094", "CVE-2005-0095", "CVE-2005-0096", "CVE-2005-0097", "CVE-2005-0173", "CVE-2005-0174", "CVE-2005-0175", "CVE-2005-0211", "CVE-2005-0241");
script_bugtraq_id(12276);
script_xref(name:"RHSA", value:"2005:061");
script_name(english:"RHEL 2.1 / 3 : squid (RHSA-2005:061)");
script_summary(english:"Checks the rpm output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Red Hat host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"An updated Squid package that fixes several security issues is now
available.
Squid is a full-featured Web proxy cache.
A buffer overflow flaw was found in the Gopher relay parser. This bug
could allow a remote Gopher server to crash the Squid proxy that reads
data from it. Although Gopher servers are now quite rare, a malicious
web page (for example) could redirect or contain a frame pointing to
an attacker's malicious gopher server. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CVE-2005-0094
to this issue.
An integer overflow flaw was found in the WCCP message parser. It is
possible to crash the Squid server if an attacker is able to send a
malformed WCCP message with a spoofed source address matching Squid's
'home router'. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CVE-2005-0095 to this issue.
A memory leak was found in the NTLM fakeauth_auth helper. It is
possible that an attacker could place the Squid server under high
load, causing the NTML fakeauth_auth helper to consume a large amount
of memory, resulting in a denial of service. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2005-0096 to this issue.
A NULL pointer de-reference bug was found in the NTLM fakeauth_auth
helper. It is possible for an attacker to send a malformed NTLM type 3
message, causing the Squid server to crash. The Common Vulnerabilities
and Exposures project (cve.mitre.org) has assigned the name
CVE-2005-0097 to this issue.
A username validation bug was found in squid_ldap_auth. It is possible
for a username to be padded with spaces, which could allow a user to
bypass explicit access control rules or confuse accounting. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2005-0173 to this issue.
The way Squid handles HTTP responses was found to need strengthening.
It is possible that a malicious web server could send a series of HTTP
responses in such a way that the Squid cache could be poisoned,
presenting users with incorrect webpages. The Common Vulnerabilities
and Exposures project (cve.mitre.org) has assigned the names
CVE-2005-0174 and CVE-2005-0175 to these issues.
A bug was found in the way Squid handled oversized HTTP response
headers. It is possible that a malicious web server could send a
specially crafted HTTP header which could cause the Squid cache to be
poisoned, presenting users with incorrect webpages. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2005-0241 to this issue.
A buffer overflow bug was found in the WCCP message parser. It is
possible that an attacker could send a malformed WCCP message which
could crash the Squid server or execute arbitrary code. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2005-0211 to this issue.
Users of Squid should upgrade to this updated package, which contains
backported patches, and is not vulnerable to these issues."
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2005-0094"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2005-0095"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2005-0096"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2005-0097"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2005-0173"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2005-0174"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2005-0175"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2005-0211"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2005-0241"
);
script_set_attribute(
attribute:"see_also",
value:"http://www.squid-cache.org/Advisories/SQUID-2005_1.txt"
);
script_set_attribute(
attribute:"see_also",
value:"http://www.squid-cache.org/Advisories/SQUID-2005_2.txt"
);
script_set_attribute(
attribute:"see_also",
value:"http://www.squid-cache.org/Advisories/SQUID-2005_3.txt"
);
script_set_attribute(
attribute:"see_also",
value:"http://www.squid-cache.org/Versions/v2/2.5/bugs/#"
);
# http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-ldap_spaces
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?96864d1c"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/errata/RHSA-2005:061"
);
script_set_attribute(attribute:"solution", value:"Update the affected squid package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:squid");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:2.1");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:3");
script_set_attribute(attribute:"vuln_publication_date", value:"2005/01/11");
script_set_attribute(attribute:"patch_publication_date", value:"2005/02/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2005/02/14");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2005-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Red Hat Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
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) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^(2\.1|3)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 2.1 / 3.x", "Red Hat " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo))
{
rhsa = "RHSA-2005:061";
yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
if (!empty_or_null(yum_report))
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : yum_report
);
exit(0);
}
else
{
audit_message = "affected by Red Hat security advisory " + rhsa;
audit(AUDIT_OS_NOT, audit_message);
}
}
else
{
flag = 0;
if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"squid-2.4.STABLE7-1.21as.4")) flag++;
if (rpm_check(release:"RHEL3", reference:"squid-2.5.STABLE3-6.3E.7")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get() + redhat_report_package_caveat()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "squid");
}
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | squid | p-cpe:/a:redhat:enterprise_linux:squid |
redhat | enterprise_linux | 2.1 | cpe:/o:redhat:enterprise_linux:2.1 |
redhat | enterprise_linux | 3 | cpe:/o:redhat:enterprise_linux:3 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0094
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0095
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0096
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0097
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0173
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0174
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0175
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0211
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0241
www.nessus.org/u?96864d1c
www.squid-cache.org/Advisories/SQUID-2005_1.txt
www.squid-cache.org/Advisories/SQUID-2005_2.txt
www.squid-cache.org/Advisories/SQUID-2005_3.txt
www.squid-cache.org/Versions/v2/2.5/bugs/#
access.redhat.com/errata/RHSA-2005:061
access.redhat.com/security/cve/cve-2005-0094
access.redhat.com/security/cve/cve-2005-0095
access.redhat.com/security/cve/cve-2005-0096
access.redhat.com/security/cve/cve-2005-0097
access.redhat.com/security/cve/cve-2005-0173
access.redhat.com/security/cve/cve-2005-0174
access.redhat.com/security/cve/cve-2005-0175
access.redhat.com/security/cve/cve-2005-0211
access.redhat.com/security/cve/cve-2005-0241