5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.953 High
EPSS
Percentile
99.4%
The version of OpenSSL installed on the remote AIX host is affected by multiple vulnerabilities :
A NULL pointer dereference flaw exists in file rsa_ameth.c when handling ASN.1 signatures that use the RSA PSS algorithm but are missing a mask generation function parameter. A remote attacker can exploit this to cause the signature verification routine to crash, leading to a denial of service. (CVE-2015-3194)
A flaw exists in the ASN1_TFLG_COMBINE implementation in file tasn_dec.c related to handling malformed X509_ATTRIBUTE structures. A remote attacker can exploit this to cause a memory leak by triggering a decoding failure in a PKCS#7 or CMS application, resulting in a denial of service. (CVE-2015-3195)
A race condition exists in s3_clnt.c that is triggered when PSK identity hints are incorrectly updated in the parent SSL_CTX structure when they are received by a multi-threaded client. A remote attacker can exploit this, via a crafted ServerKeyExchange message, to cause a double-free memory error, resulting in a denial of service. (CVE-2015-3196)
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(88085);
script_version("1.14");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/04/21");
script_cve_id(
"CVE-2015-3194",
"CVE-2015-3195",
"CVE-2015-3196"
);
script_bugtraq_id(
78622,
78623,
78626
);
script_name(english:"AIX OpenSSL Advisory : openssl_advisory15.asc");
script_summary(english:"Checks the version of the OpenSSL packages and iFixes.");
script_set_attribute(attribute:"synopsis", value:
"The remote AIX host has a version of OpenSSL installed that is
affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The version of OpenSSL installed on the remote AIX host is affected by
multiple vulnerabilities :
- A NULL pointer dereference flaw exists in file
rsa_ameth.c when handling ASN.1 signatures that use the
RSA PSS algorithm but are missing a mask generation
function parameter. A remote attacker can exploit this
to cause the signature verification routine to crash,
leading to a denial of service. (CVE-2015-3194)
- A flaw exists in the ASN1_TFLG_COMBINE implementation in
file tasn_dec.c related to handling malformed
X509_ATTRIBUTE structures. A remote attacker can exploit
this to cause a memory leak by triggering a decoding
failure in a PKCS#7 or CMS application, resulting in a
denial of service. (CVE-2015-3195)
- A race condition exists in s3_clnt.c that is triggered
when PSK identity hints are incorrectly updated in the
parent SSL_CTX structure when they are received by a
multi-threaded client. A remote attacker can exploit
this, via a crafted ServerKeyExchange message, to cause
a double-free memory error, resulting in a denial of
service. (CVE-2015-3196)");
script_set_attribute(attribute:"see_also", value:"https://aix.software.ibm.com/aix/efixes/security/openssl_advisory15.asc");
script_set_attribute(attribute:"see_also", value:"https://www-01.ibm.com/marketing/iwm/iwm/web/preLogin.do?source=aixbp");
script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/news/secadv/20151203.txt");
script_set_attribute(attribute:"solution", value:
"A fix is available and can be downloaded from the AIX website.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"vuln_publication_date", value:"2015/12/03");
script_set_attribute(attribute:"patch_publication_date", value:"2016/01/18");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/01/22");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:ibm:aix");
script_set_attribute(attribute:"cpe", value:"cpe:/a:openssl:openssl");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"AIX Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2016-2023 Tenable Network Security, Inc.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/AIX/lslpp", "Host/local_checks_enabled", "Host/AIX/version");
exit(0);
}
include("aix.inc");
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
oslevel = get_kb_item("Host/AIX/version");
if (isnull(oslevel)) audit(AUDIT_UNKNOWN_APP_VER, "AIX");
if ( oslevel != "AIX-5.3" && oslevel != "AIX-6.1" && oslevel != "AIX-7.1" && oslevel != "AIX-7.2" )
{
oslevel = ereg_replace(string:oslevel, pattern:"-", replace:" ");
audit(AUDIT_OS_NOT, "AIX 5.3 / 6.1 / 7.1 / 7.2", oslevel);
}
if ( ! get_kb_item("Host/AIX/lslpp") ) audit(AUDIT_PACKAGE_LIST_MISSING);
if ( get_kb_item("Host/AIX/emgr_failure" ) ) exit(0, "This AIX package check is disabled because : "+get_kb_item("Host/AIX/emgr_failure") );
flag = 0;
ifixes_098 = "(098_ifix|IV81287m9b|IV83169m9b)";
ifixes_1298 = "(1298_ifix|IV81287m9c|IV83169m9c)";
ifixes_101 = "(101_ifix|101a_fix|IV81287m9a|IV83169m9a)";
#0.9.8.2506
if (aix_check_ifix(release:"5.3", patch:ifixes_098, package:"openssl.base", minfilesetver:"0.0.0.0", maxfilesetver:"0.9.8.2506") < 0) flag++;
if (aix_check_ifix(release:"6.1", patch:ifixes_098, package:"openssl.base", minfilesetver:"0.0.0.0", maxfilesetver:"0.9.8.2506") < 0) flag++;
if (aix_check_ifix(release:"7.1", patch:ifixes_098, package:"openssl.base", minfilesetver:"0.0.0.0", maxfilesetver:"0.9.8.2506") < 0) flag++;
if (aix_check_ifix(release:"7.2", patch:ifixes_098, package:"openssl.base", minfilesetver:"0.0.0.0", maxfilesetver:"0.9.8.2506") < 0) flag++;
#12.9.8.2506
if (aix_check_ifix(release:"5.3", patch:ifixes_1298, package:"openssl.base", minfilesetver:"12.0.0.0", maxfilesetver:"12.9.8.2506") < 0) flag++;
if (aix_check_ifix(release:"6.1", patch:ifixes_1298, package:"openssl.base", minfilesetver:"12.0.0.0", maxfilesetver:"12.9.8.2506") < 0) flag++;
if (aix_check_ifix(release:"7.1", patch:ifixes_1298, package:"openssl.base", minfilesetver:"12.0.0.0", maxfilesetver:"12.9.8.2506") < 0) flag++;
if (aix_check_ifix(release:"7.2", patch:ifixes_1298, package:"openssl.base", minfilesetver:"12.0.0.0", maxfilesetver:"12.9.8.2506") < 0) flag++;
#1.0.1.515
if (aix_check_ifix(release:"5.3", patch:ifixes_101, package:"openssl.base", minfilesetver:"1.0.1.500", maxfilesetver:"1.0.1.515") < 0) flag++;
if (aix_check_ifix(release:"6.1", patch:ifixes_101, package:"openssl.base", minfilesetver:"1.0.1.500", maxfilesetver:"1.0.1.515") < 0) flag++;
if (aix_check_ifix(release:"7.1", patch:ifixes_101, package:"openssl.base", minfilesetver:"1.0.1.500", maxfilesetver:"1.0.1.515") < 0) flag++;
if (aix_check_ifix(release:"7.2", patch:ifixes_101, package:"openssl.base", minfilesetver:"1.0.1.500", maxfilesetver:"1.0.1.515") < 0) flag++;
if (flag)
{
aix_report_extra = ereg_replace(string:aix_report_get(), pattern:"[()]", replace:"");
aix_report_extra = ereg_replace(string:aix_report_extra, pattern:"[|]", replace:" or ");
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : aix_report_extra
);
}
else
{
tested = aix_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "openssl.base");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3194
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3195
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3196
aix.software.ibm.com/aix/efixes/security/openssl_advisory15.asc
www-01.ibm.com/marketing/iwm/iwm/web/preLogin.do?source=aixbp
www.openssl.org/news/secadv/20151203.txt
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.953 High
EPSS
Percentile
99.4%