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%
This update for apache2 fixes the following issues :
CVE-2018-1283: when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a 'Session' header leading to unexpected behavior [bsc#1086814].
CVE-2018-1301: due to an out of bound access after a size limit being reached by reading the HTTP header, a specially crafted request could lead to remote denial of service. [bsc#1086817]
CVE-2018-1303: a specially crafted HTTP request header could lead to crash due to an out of bound read while preparing data to be cached in shared memory.[bsc#1086813]
CVE-2017-15715: a regular expression could match ‘$’ to a newline character in a malicious filename, rather than matching only the end of the filename. leading to corruption of uploaded files.[bsc#1086774]
CVE-2018-1312: 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. [bsc#1086775]
CVE-2017-15710: 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.
[bsc#1086820]
CVE-2018-1302: when an HTTP/2 stream was destroyed after being handled, it could have written a NULL pointer potentially to an already freed memory. The memory pools maintained by the server make this vulnerability hard to trigger in usual configurations, the reporter and the team could not reproduce it outside debug builds, so it is classified as low risk. [bsc#1086820]
Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:1161-2.
# The text itself is copyright (C) SUSE.
#
include("compat.inc");
if (description)
{
script_id(118251);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/02/07");
script_cve_id("CVE-2017-15710", "CVE-2017-15715", "CVE-2018-1283", "CVE-2018-1301", "CVE-2018-1302", "CVE-2018-1303", "CVE-2018-1312");
script_name(english:"SUSE SLES12 Security Update : apache2 (SUSE-SU-2018:1161-2)");
script_summary(english:"Checks rpm output for the updated packages.");
script_set_attribute(
attribute:"synopsis",
value:"The remote SUSE host is missing one or more security updates."
);
script_set_attribute(
attribute:"description",
value:
"This update for apache2 fixes the following issues :
- CVE-2018-1283: when mod_session is configured to forward
its session data to CGI applications (SessionEnv on, not
the default), a remote user may influence their content
by using a \'Session\' header leading to unexpected
behavior [bsc#1086814].
- CVE-2018-1301: due to an out of bound access after a
size limit being reached by reading the HTTP header, a
specially crafted request could lead to remote denial of
service. [bsc#1086817]
- CVE-2018-1303: a specially crafted HTTP request header
could lead to crash due to an out of bound read while
preparing data to be cached in shared
memory.[bsc#1086813]
- CVE-2017-15715: a regular expression could match '$' to
a newline character in a malicious filename, rather than
matching only the end of the filename. leading to
corruption of uploaded files.[bsc#1086774]
- CVE-2018-1312: 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. [bsc#1086775]
- CVE-2017-15710: 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.
[bsc#1086820]
- CVE-2018-1302: when an HTTP/2 stream was destroyed after
being handled, it could have written a NULL pointer
potentially to an already freed memory. The memory pools
maintained by the server make this vulnerability hard to
trigger in usual configurations, the reporter and the
team could not reproduce it outside debug builds, so it
is classified as low risk. [bsc#1086820]
Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1086774"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1086775"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1086813"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1086814"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1086817"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1086820"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-15710/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-15715/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2018-1283/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2018-1301/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2018-1302/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2018-1303/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2018-1312/"
);
# https://www.suse.com/support/update/announcement/2018/suse-su-20181161-2/
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?40fffb15"
);
script_set_attribute(
attribute:"solution",
value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.
Alternatively you can run the command listed for your product :
SUSE Linux Enterprise Server 12-SP2-BCL:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-BCL-2018-803=1"
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
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:U/C:H/I:H/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-2018-1312");
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:novell:suse_linux:apache2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-example-pages");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-prefork");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-prefork-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-utils");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-utils-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-worker");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-worker-debuginfo");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/03/26");
script_set_attribute(attribute:"patch_publication_date", value:"2018/10/18");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/10/22");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2018-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"SuSE Local Security Checks");
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("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/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "SUSE " + os_ver);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);
if (cpu >!< "x86_64") audit(AUDIT_ARCH_NOT, "x86_64", cpu);
sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(2)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2", os_ver + " SP" + sp);
flag = 0;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"apache2-2.4.23-29.18.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"apache2-debuginfo-2.4.23-29.18.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"apache2-debugsource-2.4.23-29.18.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"apache2-example-pages-2.4.23-29.18.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"apache2-prefork-2.4.23-29.18.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"apache2-prefork-debuginfo-2.4.23-29.18.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"apache2-utils-2.4.23-29.18.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"apache2-utils-debuginfo-2.4.23-29.18.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"apache2-worker-2.4.23-29.18.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"apache2-worker-debuginfo-2.4.23-29.18.2")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "apache2");
}
Vendor | Product | Version | CPE |
---|---|---|---|
novell | suse_linux | apache2-prefork-debuginfo | p-cpe:/a:novell:suse_linux:apache2-prefork-debuginfo |
novell | suse_linux | apache2-utils | p-cpe:/a:novell:suse_linux:apache2-utils |
novell | suse_linux | apache2-utils-debuginfo | p-cpe:/a:novell:suse_linux:apache2-utils-debuginfo |
novell | suse_linux | apache2-worker | p-cpe:/a:novell:suse_linux:apache2-worker |
novell | suse_linux | apache2-worker-debuginfo | p-cpe:/a:novell:suse_linux:apache2-worker-debuginfo |
novell | suse_linux | 12 | cpe:/o:novell:suse_linux:12 |
novell | suse_linux | apache2 | p-cpe:/a:novell:suse_linux:apache2 |
novell | suse_linux | apache2-debuginfo | p-cpe:/a:novell:suse_linux:apache2-debuginfo |
novell | suse_linux | apache2-debugsource | p-cpe:/a:novell:suse_linux:apache2-debugsource |
novell | suse_linux | apache2-example-pages | p-cpe:/a:novell:suse_linux:apache2-example-pages |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15710
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15715
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1283
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1301
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1302
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1303
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1312
www.nessus.org/u?40fffb15
bugzilla.suse.com/show_bug.cgi?id=1086774
bugzilla.suse.com/show_bug.cgi?id=1086775
bugzilla.suse.com/show_bug.cgi?id=1086813
bugzilla.suse.com/show_bug.cgi?id=1086814
bugzilla.suse.com/show_bug.cgi?id=1086817
bugzilla.suse.com/show_bug.cgi?id=1086820
www.suse.com/security/cve/CVE-2017-15710/
www.suse.com/security/cve/CVE-2017-15715/
www.suse.com/security/cve/CVE-2018-1283/
www.suse.com/security/cve/CVE-2018-1301/
www.suse.com/security/cve/CVE-2018-1302/
www.suse.com/security/cve/CVE-2018-1303/
www.suse.com/security/cve/CVE-2018-1312/
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%