6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.959 High
EPSS
Percentile
99.5%
According to the versions of the httpd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :
In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user’s credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, ‘en-US’ is truncated to ‘en’). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all.(CVE-2017-15710)
In Apache httpd 2.4.0 to 2.4.29, the expression specified in could match ‘$’ to a newline character in a malicious filename, rather than matching only the end of the filename. This could be exploited in environments where uploads of some files are are externally blocked, but only by matching the trailing portion of the filename.(CVE-2017-15715)
In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection.(CVE-2018-1312)
A specially crafted HTTP request header could have crashed the Apache HTTP Server prior to version 2.4.30 due to an out of bound read while preparing data to be cached in shared memory. It could be used as a Denial of Service attack against users of mod_cache_socache.
The vulnerability is considered as low risk since mod_cache_socache is not widely used, mod_cache_disk is not concerned by this vulnerability.(CVE-2018-1303)
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(110877);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id(
"CVE-2017-15710",
"CVE-2017-15715",
"CVE-2018-1303",
"CVE-2018-1312"
);
script_name(english:"EulerOS 2.0 SP3 : httpd (EulerOS-SA-2018-1213)");
script_summary(english:"Checks the rpm output for the updated packages.");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
script_set_attribute(attribute:"description", value:
"According to the versions of the httpd packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :
- In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and
2.4.0 to 2.4.29, mod_authnz_ldap, if configured with
AuthLDAPCharsetConfig, uses the Accept-Language header
value to lookup the right charset encoding when
verifying the user's credentials. If the header value
is not present in the charset conversion table, a
fallback mechanism is used to truncate it to a two
characters value to allow a quick retry (for example,
'en-US' is truncated to 'en'). A header value of less
than two characters forces an out of bound write of one
NUL byte to a memory location that is not part of the
string. In the worst case, quite unlikely, the process
would crash which could be used as a Denial of Service
attack. In the more likely case, this memory is already
reserved for future use and the issue has no effect at
all.(CVE-2017-15710)
- In Apache httpd 2.4.0 to 2.4.29, the expression
specified in could match '$' to a newline character in
a malicious filename, rather than matching only the end
of the filename. This could be exploited in
environments where uploads of some files are are
externally blocked, but only by matching the trailing
portion of the filename.(CVE-2017-15715)
- In Apache httpd 2.2.0 to 2.4.29, when generating an
HTTP Digest authentication challenge, the nonce sent to
prevent reply attacks was not correctly generated using
a pseudo-random seed. In a cluster of servers using a
common Digest authentication configuration, HTTP
requests could be replayed across servers by an
attacker without detection.(CVE-2018-1312)
- A specially crafted HTTP request header could have
crashed the Apache HTTP Server prior to version 2.4.30
due to an out of bound read while preparing data to be
cached in shared memory. It could be used as a Denial
of Service attack against users of mod_cache_socache.
The vulnerability is considered as low risk since
mod_cache_socache is not widely used, mod_cache_disk is
not concerned by this vulnerability.(CVE-2018-1303)
Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
# https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2018-1213
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?61c0465f");
script_set_attribute(attribute:"solution", value:
"Update the affected httpd packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_attribute(attribute:"patch_publication_date", value:"2018/06/25");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/07/03");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:httpd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:httpd-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:httpd-manual");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:httpd-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:mod_ssl");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Huawei Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2018-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
script_exclude_keys("Host/EulerOS/uvp_version");
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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");
sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(3)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3", "EulerOS UVP " + uvp);
if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);
flag = 0;
pkgs = ["httpd-2.4.6-45.0.1.4.h10",
"httpd-devel-2.4.6-45.0.1.4.h10",
"httpd-manual-2.4.6-45.0.1.4.h10",
"httpd-tools-2.4.6-45.0.1.4.h10",
"mod_ssl-2.4.6-45.0.1.4.h10"];
foreach (pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", sp:"3", reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
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, "httpd");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | httpd | p-cpe:/a:huawei:euleros:httpd |
huawei | euleros | httpd-devel | p-cpe:/a:huawei:euleros:httpd-devel |
huawei | euleros | httpd-manual | p-cpe:/a:huawei:euleros:httpd-manual |
huawei | euleros | httpd-tools | p-cpe:/a:huawei:euleros:httpd-tools |
huawei | euleros | mod_ssl | p-cpe:/a:huawei:euleros:mod_ssl |
huawei | euleros | 2.0 | cpe:/o:huawei:euleros:2.0 |
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.959 High
EPSS
Percentile
99.5%