CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
AI Score
Confidence
Low
EPSS
Percentile
15.5%
The remote SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:1113-1 advisory.
Squid is a web proxy cache. Starting in version 3.5.27 and prior to version 6.8, Squid may be vulnerable to a Denial of Service attack against HTTP Chunked decoder due to an uncontrolled recursion bug. This problem allows a remote attacker to cause Denial of Service when sending a crafted, chunked, encoded HTTP Message. This bug is fixed in Squid version 6.8. In addition, patches addressing this problem for the stable releases can be found in Squid’s patch archives. There is no workaround for this issue.
(CVE-2024-25111)
Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Collapse of Data into Unsafe Value bug ,Squid may be vulnerable to a Denial of Service attack against HTTP header parsing. This problem allows a remote client or a remote server to perform Denial of Service when sending oversized headers in HTTP messages. In versions of Squid prior to 6.5 this can be achieved if the request_header_max_size or reply_header_max_size settings are unchanged from the default. In Squid version 6.5 and later, the default setting of these parameters is safe. Squid will emit a critical warning in cache.log if the administrator is setting these parameters to unsafe values. Squid will not at this time prevent these settings from being changed to unsafe values. Users are advised to upgrade to version 6.5.
There are no known workarounds for this vulnerability. This issue is also tracked as SQUID-2024:2 (CVE-2024-25617)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2024:1113-1. The text itself
# is copyright (C) SUSE.
##
include('compat.inc');
if (description)
{
script_id(192992);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/08");
script_cve_id("CVE-2024-25111", "CVE-2024-25617");
script_xref(name:"SuSE", value:"SUSE-SU-2024:1113-1");
script_name(english:"SUSE SLES15 / openSUSE 15 Security Update : squid (SUSE-SU-2024:1113-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has a package installed that is affected by multiple
vulnerabilities as referenced in the SUSE-SU-2024:1113-1 advisory.
- Squid is a web proxy cache. Starting in version 3.5.27 and prior to version 6.8, Squid may be vulnerable
to a Denial of Service attack against HTTP Chunked decoder due to an uncontrolled recursion bug. This
problem allows a remote attacker to cause Denial of Service when sending a crafted, chunked, encoded HTTP
Message. This bug is fixed in Squid version 6.8. In addition, patches addressing this problem for the
stable releases can be found in Squid's patch archives. There is no workaround for this issue.
(CVE-2024-25111)
- Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Collapse
of Data into Unsafe Value bug ,Squid may be vulnerable to a Denial of Service attack against HTTP header
parsing. This problem allows a remote client or a remote server to perform Denial of Service when sending
oversized headers in HTTP messages. In versions of Squid prior to 6.5 this can be achieved if the
request_header_max_size or reply_header_max_size settings are unchanged from the default. In Squid version
6.5 and later, the default setting of these parameters is safe. Squid will emit a critical warning in
cache.log if the administrator is setting these parameters to unsafe values. Squid will not at this time
prevent these settings from being changed to unsafe values. Users are advised to upgrade to version 6.5.
There are no known workarounds for this vulnerability. This issue is also tracked as SQUID-2024:2
(CVE-2024-25617)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216715");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1219960");
script_set_attribute(attribute:"see_also", value:"https://lists.suse.com/pipermail/sle-updates/2024-April/034847.html");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2024-25111");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2024-25617");
script_set_attribute(attribute:"solution", value:
"Update the affected squid package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-25617");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2024-25111");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/12/06");
script_set_attribute(attribute:"patch_publication_date", value:"2024/04/04");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/04/08");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:squid");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"SuSE Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");
exit(0);
}
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item("Host/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES|SUSE)") audit(AUDIT_OS_NOT, "SUSE / openSUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)(?:_SAP)?\d+|SUSE([\d.]+))", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE / openSUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES15|SLES_SAP15|SUSE15\.5)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES15 / SLES_SAP15 / openSUSE 15', 'SUSE / openSUSE (' + os_ver + ')');
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'SUSE / openSUSE (' + os_ver + ')', cpu);
var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLES15" && (! preg(pattern:"^(4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP4/5", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP15" && (! preg(pattern:"^(4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP15 SP4/5", os_ver + " SP" + service_pack);
var pkgs = [
{'reference':'squid-5.7-150400.3.26.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
{'reference':'squid-5.7-150400.3.26.1', 'sp':'5', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
{'reference':'squid-5.7-150400.3.26.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-ESPOS-release-4']},
{'reference':'squid-5.7-150400.3.26.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-ESPOS-release-4', 'SUSE-Manager-Proxy-release-4.3']},
{'reference':'squid-5.7-150400.3.26.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-LTSS-release-15.4']},
{'reference':'squid-5.7-150400.3.26.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-LTSS-release-15.4']},
{'reference':'squid-5.7-150400.3.26.1', 'sp':'5', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-server-applications-release-15.5', 'sles-release-15.5']},
{'reference':'squid-5.7-150400.3.26.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Manager-Server-release-4.3']},
{'reference':'squid-5.7-150400.3.26.1', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
{'reference':'squid-5.7-150400.3.26.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-ltss-release-15.4']}
];
var ltss_caveat_required = FALSE;
var flag = 0;
foreach var package_array ( pkgs ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var exists_check = NULL;
var rpm_spec_vers_cmp = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) _release = package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (reference && _release) {
if (exists_check) {
var check_flag = 0;
foreach var check (exists_check) {
if (!rpm_exists(release:_release, rpm:check)) continue;
if ('ltss' >< tolower(check)) ltss_caveat_required = TRUE;
check_flag++;
}
if (!check_flag) continue;
}
if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;
}
}
if (flag)
{
var ltss_plugin_caveat = NULL;
if(ltss_caveat_required) ltss_plugin_caveat = '\n' +
'NOTE: This vulnerability check contains fixes that apply to\n' +
'packages only available in SUSE Enterprise Linux Server LTSS\n' +
'repositories. Access to these package security updates require\n' +
'a paid SUSE LTSS subscription.\n';
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get() + ltss_plugin_caveat
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'squid');
}
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
AI Score
Confidence
Low
EPSS
Percentile
15.5%