5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.3 Medium
AI Score
Confidence
High
0.024 Low
EPSS
Percentile
89.9%
This update for openssh fixes the following issues :
CVE-2018-15919: Remotely observable behaviour in auth-gss2.c in OpenSSH could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. OpenSSH developers do not want to treat such a username enumeration (or ‘oracle’) as a vulnerability. (bsc#1106163)
CVE-2018-15473: OpenSSH was prone to a user existance oracle vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.
(bsc#1105010)
The following non-security issues were fixed :
Stop leaking File descriptors (bsc#964336)
sftp-client.c returns wrong error code upon failure (bsc#1091396)
added pam_keyinit to pam configuration file (bsc#1081947)
This update was imported from the SUSE:SLE-15:Update update project.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2019-914.
#
# The text description of this plugin is (C) SUSE LLC.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(123374);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/10");
script_cve_id("CVE-2018-15473", "CVE-2018-15919");
script_name(english:"openSUSE Security Update : openssh (openSUSE-2019-914)");
script_set_attribute(attribute:"synopsis", value:
"The remote openSUSE host is missing a security update.");
script_set_attribute(attribute:"description", value:
"This update for openssh fixes the following issues :
- CVE-2018-15919: Remotely observable behaviour in
auth-gss2.c in OpenSSH could be used by remote attackers
to detect existence of users on a target system when
GSS2 is in use. OpenSSH developers do not want to treat
such a username enumeration (or 'oracle') as a
vulnerability. (bsc#1106163)
- CVE-2018-15473: OpenSSH was prone to a user existance
oracle vulnerability due to not delaying bailout for an
invalid authenticating user until after the packet
containing the request has been fully parsed, related to
auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.
(bsc#1105010)
The following non-security issues were fixed :
- Stop leaking File descriptors (bsc#964336)
- sftp-client.c returns wrong error code upon failure
(bsc#1091396)
- added pam_keyinit to pam configuration file
(bsc#1081947)
This update was imported from the SUSE:SLE-15:Update update project.");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1081947");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1091396");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1105010");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1106163");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=964336");
script_set_attribute(attribute:"solution", value:
"Update the affected openssh packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-15919");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
script_set_attribute(attribute:"canvas_package", value:"CANVAS");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/17");
script_set_attribute(attribute:"patch_publication_date", value:"2019/03/23");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/27");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:openssh");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:openssh-askpass-gnome");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:openssh-askpass-gnome-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:openssh-cavs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:openssh-cavs-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:openssh-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:openssh-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:openssh-fips");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:openssh-helpers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:openssh-helpers-debuginfo");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.0");
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) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");
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, "openSUSE");
if (release !~ "^(SUSE15\.0)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "15.0", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);
flag = 0;
if ( rpm_check(release:"SUSE15.0", reference:"openssh-7.6p1-lp150.8.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"openssh-cavs-7.6p1-lp150.8.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"openssh-cavs-debuginfo-7.6p1-lp150.8.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"openssh-debuginfo-7.6p1-lp150.8.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"openssh-debugsource-7.6p1-lp150.8.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"openssh-fips-7.6p1-lp150.8.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"openssh-helpers-7.6p1-lp150.8.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"openssh-helpers-debuginfo-7.6p1-lp150.8.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"openssh-askpass-gnome-7.6p1-lp150.8.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"openssh-askpass-gnome-debuginfo-7.6p1-lp150.8.3.1") ) 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, "openssh-askpass-gnome / openssh-askpass-gnome-debuginfo / openssh / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
novell | opensuse | openssh-askpass-gnome | p-cpe:/a:novell:opensuse:openssh-askpass-gnome |
novell | opensuse | openssh-askpass-gnome-debuginfo | p-cpe:/a:novell:opensuse:openssh-askpass-gnome-debuginfo |
novell | opensuse | openssh-fips | p-cpe:/a:novell:opensuse:openssh-fips |
novell | opensuse | 15.0 | cpe:/o:novell:opensuse:15.0 |
novell | opensuse | openssh-cavs-debuginfo | p-cpe:/a:novell:opensuse:openssh-cavs-debuginfo |
novell | opensuse | openssh | p-cpe:/a:novell:opensuse:openssh |
novell | opensuse | openssh-helpers-debuginfo | p-cpe:/a:novell:opensuse:openssh-helpers-debuginfo |
novell | opensuse | openssh-cavs | p-cpe:/a:novell:opensuse:openssh-cavs |
novell | opensuse | openssh-debuginfo | p-cpe:/a:novell:opensuse:openssh-debuginfo |
novell | opensuse | openssh-debugsource | p-cpe:/a:novell:opensuse:openssh-debugsource |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15473
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15919
bugzilla.opensuse.org/show_bug.cgi?id=1081947
bugzilla.opensuse.org/show_bug.cgi?id=1091396
bugzilla.opensuse.org/show_bug.cgi?id=1105010
bugzilla.opensuse.org/show_bug.cgi?id=1106163
bugzilla.opensuse.org/show_bug.cgi?id=964336
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.3 Medium
AI Score
Confidence
High
0.024 Low
EPSS
Percentile
89.9%