CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
99.9%
The version of OpenSSL installed on the remote AIX host is affected by multiple vulnerabilities :
An invalid free memory error exists due to improper validation of user-supplied input when a DTLS peer receives application data between ChangeCipherSpec and Finished messages. A remote attacker can exploit this to corrupt memory, resulting in a denial of service or the execution of arbitrary code. (CVE-2014-8176)
A denial of service vulnerability exists when processing an ECParameters structure due to an infinite loop that occurs when a specified curve is over a malformed binary polynomial field. A remote attacker can exploit this to perform a denial of service against any system that processes public keys, certificate requests, or certificates. This includes TLS clients and TLS servers with client authentication enabled. (CVE-2015-1788)
A denial of service vulnerability exists due to improper validation of the content and length of the ASN1_TIME string by the X509_cmp_time() function. A remote attacker can exploit this, via a malformed certificate and CRLs of various sizes, to cause a segmentation fault, resulting in a denial of service condition. TLS clients that verify CRLs are affected. TLS clients and servers with client authentication enabled may be affected if they use custom verification callbacks.
(CVE-2015-1789)
A NULL pointer dereference flaw exists in the PKCS#7 parsing code due to incorrect handling of missing inner ‘EncryptedContent’. This allows a remote attacker, via specially crafted ASN.1-encoded PKCS#7 blobs with missing content, to cause a denial of service condition or other potential unspecified impacts. (CVE-2015-1790)
A double-free error exists due to a race condition that occurs when a NewSessionTicket is received by a multi-threaded client when attempting to reuse a previous ticket. (CVE-2015-1791)
A denial of service vulnerability exists in the CMS code due to an infinite loop that occurs when verifying a signedData message. A remote attacker can exploit this to cause a denial of service condition. (CVE-2015-1792)
A man-in-the-middle vulnerability, known as Logjam, exists due to a flaw in the SSL/TLS protocol. A remote attacker can exploit this flaw to downgrade connections using ephemeral Diffie-Hellman key exchange to 512-bit export-grade cryptography. (CVE-2015-4000)
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(84880);
script_version("1.12");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/04/21");
script_cve_id(
"CVE-2014-8176",
"CVE-2015-1788",
"CVE-2015-1789",
"CVE-2015-1790",
"CVE-2015-1791",
"CVE-2015-1792",
"CVE-2015-4000"
);
script_bugtraq_id(
74733,
75154,
75156,
75157,
75158,
75159,
75161
);
script_xref(name:"CEA-ID", value:"CEA-2021-0004");
script_name(english:"AIX OpenSSL Advisory : openssl_advisory14.asc (Logjam)");
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 :
- An invalid free memory error exists due to improper
validation of user-supplied input when a DTLS peer
receives application data between ChangeCipherSpec and
Finished messages. A remote attacker can exploit this to
corrupt memory, resulting in a denial of service or
the execution of arbitrary code. (CVE-2014-8176)
- A denial of service vulnerability exists when processing
an ECParameters structure due to an infinite loop that
occurs when a specified curve is over a malformed binary
polynomial field. A remote attacker can exploit this to
perform a denial of service against any system that
processes public keys, certificate requests, or
certificates. This includes TLS clients and TLS servers
with client authentication enabled. (CVE-2015-1788)
- A denial of service vulnerability exists due to improper
validation of the content and length of the ASN1_TIME
string by the X509_cmp_time() function. A remote
attacker can exploit this, via a malformed certificate
and CRLs of various sizes, to cause a segmentation
fault, resulting in a denial of service condition. TLS
clients that verify CRLs are affected. TLS clients and
servers with client authentication enabled may be
affected if they use custom verification callbacks.
(CVE-2015-1789)
- A NULL pointer dereference flaw exists in the PKCS#7
parsing code due to incorrect handling of missing inner
'EncryptedContent'. This allows a remote attacker, via
specially crafted ASN.1-encoded PKCS#7 blobs with
missing content, to cause a denial of service condition
or other potential unspecified impacts. (CVE-2015-1790)
- A double-free error exists due to a race condition that
occurs when a NewSessionTicket is received by a
multi-threaded client when attempting to reuse a
previous ticket. (CVE-2015-1791)
- A denial of service vulnerability exists in the CMS code
due to an infinite loop that occurs when verifying a
signedData message. A remote attacker can exploit this
to cause a denial of service condition. (CVE-2015-1792)
- A man-in-the-middle vulnerability, known as Logjam,
exists due to a flaw in the SSL/TLS protocol. A remote
attacker can exploit this flaw to downgrade connections
using ephemeral Diffie-Hellman key exchange to 512-bit
export-grade cryptography. (CVE-2015-4000)");
script_set_attribute(attribute:"see_also", value:"https://aix.software.ibm.com/aix/efixes/security/openssl_advisory14.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/20150611.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:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"in_the_news", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2015/05/20");
script_set_attribute(attribute:"patch_publication_date", value:"2015/07/15");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/07/20");
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) 2015-2023 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 = ereg_replace(string:oslevel, pattern:"-", replace:" ");
audit(AUDIT_OS_NOT, "AIX 5.3 / 6.1 / 7.1", 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;
#0.9.8.2505
if (aix_check_ifix(release:"5.3", patch:"IV74809s9b", package:"openssl.base", minfilesetver:"0.0.0.0", maxfilesetver:"0.9.8.2505") < 0) flag++;
if (aix_check_ifix(release:"6.1", patch:"IV74809s9b", package:"openssl.base", minfilesetver:"0.0.0.0", maxfilesetver:"0.9.8.2505") < 0) flag++;
if (aix_check_ifix(release:"7.1", patch:"IV74809s9b", package:"openssl.base", minfilesetver:"0.0.0.0", maxfilesetver:"0.9.8.2505") < 0) flag++;
#12.9.8.2505
if (aix_check_ifix(release:"5.3", patch:"IV74809s9c", package:"openssl.base", minfilesetver:"12.0.0.0", maxfilesetver:"12.9.8.2505") < 0) flag++;
if (aix_check_ifix(release:"6.1", patch:"IV74809s9c", package:"openssl.base", minfilesetver:"12.0.0.0", maxfilesetver:"12.9.8.2505") < 0) flag++;
if (aix_check_ifix(release:"7.1", patch:"IV74809s9c", package:"openssl.base", minfilesetver:"12.0.0.0", maxfilesetver:"12.9.8.2505") < 0) flag++;
# Check 1.0.1 versions only after other two pass, this one has the
# potential to audit out early.
if (flag == 0)
{
#1.0.1.514
# ifix on POWER8 machines is IV75570m9a. ifix on all others is IV74809s9a
aix_processor = get_kb_item("Host/AIX/processor");
if (empty_or_null(aix_processor)) audit(AUDIT_KB_MISSING, "Host/AIX/processor");
ifix = "(IV74809s9a|IV75570m9a)";
if ("POWER8" >< aix_processor) ifix = "IV75570m9a";
if (aix_check_ifix(release:"5.3", patch:ifix, package:"openssl.base", minfilesetver:"1.0.1.500", maxfilesetver:"1.0.1.514") < 0) flag++;
if (aix_check_ifix(release:"6.1", patch:ifix, package:"openssl.base", minfilesetver:"1.0.1.500", maxfilesetver:"1.0.1.514") < 0) flag++;
if (aix_check_ifix(release:"7.1", patch:ifix, package:"openssl.base", minfilesetver:"1.0.1.500", maxfilesetver:"1.0.1.514") < 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 ");
if (report_verbosity > 0) security_hole(port:0, extra:aix_report_extra);
else security_hole(0);
exit(0);
}
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-2014-8176
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1788
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1789
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1790
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1791
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1792
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4000
aix.software.ibm.com/aix/efixes/security/openssl_advisory14.asc
www-01.ibm.com/marketing/iwm/iwm/web/preLogin.do?source=aixbp
www.openssl.org/news/secadv/20150611.txt
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
99.9%