Executive Summary

Informations
NameCVE-2015-1793First vendor Publication2015-07-09
VendorCveLast vendor Modification2018-11-30

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:N)
Cvss Base Score6.4Attack RangeNetwork
Cvss Impact Score4.9Attack ComplexityLow
Cvss Expoit Score10AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

The X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly process X.509 Basic Constraints cA values during identification of alternative certificate chains, which allows remote attackers to spoof a Certification Authority role and trigger unintended certificate verifications via a valid leaf certificate.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1793

CWE : Common Weakness Enumeration

%idName
100 %CWE-254Security Features

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:29158
 
Oval ID: oval:org.mitre.oval:def:29158
Title: HP-UX OpenSSL Vulnerability (Alternative Chain Certificate Forgery)
Description: The X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly process X.509 Basic Constraints cA values during identification of alternative certificate chains, which allows remote attackers to spoof a Certification Authority role and trigger unintended certificate verifications via a valid leaf certificate.
Family: unix Class: vulnerability
Reference(s): CVE-2015-1793
Version: 1
Platform(s): HP-UX 11
Product(s):
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application4
Application2
Application3
Os1

Information Assurance Vulnerability Management (IAVM)

DateDescription
2015-08-27IAVM : 2015-A-0203 - Multiple Cisco Products Certificate Forgery Vulnerability
Severity : Category I - VMSKEY : V0061345
2015-07-09IAVM : 2015-A-0144 - OpenSSL Certificate Validation Vulnerability
Severity : Category I - VMSKEY : V0061067

Snort® IPS/IDS

DateDescription
2015-08-20OpenSSL alternative chains certificate forgery attempt
RuleID : 35307 - Revision : 2 - Type : SERVER-OTHER
2015-08-11OpenSSL anomalous x509 certificate with default org name and certificate chai...
RuleID : 35111 - Revision : 5 - Type : SERVER-OTHER

Nessus® Vulnerability Scanner

DateDescription
2016-03-24Name : The remote web server is affected by multiple vulnerabilities.
File : hpsmh_7_5_4.nasl - Type : ACT_GATHER_INFO
2016-01-21Name : The remote host has an enterprise management application installed that is af...
File : oracle_enterprise_manager_jan_2016_cpu.nasl - Type : ACT_GATHER_INFO
2015-12-21Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-2303-1.nasl - Type : ACT_GATHER_INFO
2015-12-17Name : The remote openSUSE host is missing a security update.
File : openSUSE-2015-889.nasl - Type : ACT_GATHER_INFO
2015-10-29Name : The remote host is missing one or more security updates.
File : mysql_5_6_26_rpm.nasl - Type : ACT_GATHER_INFO
2015-10-22Name : The remote database server is affected by multiple vulnerabilities.
File : mysql_5_6_27.nasl - Type : ACT_GATHER_INFO
2015-09-23Name : The remote security device is missing a vendor-supplied security patch.
File : cisco-sa-CSCuv26213-asa-cx.nasl - Type : ACT_GATHER_INFO
2015-09-23Name : The management application installed on the remote host is affected by a cert...
File : cisco-sa-CSCuv26213-prsm.nasl - Type : ACT_GATHER_INFO
2015-09-23Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201507-15.nasl - Type : ACT_GATHER_INFO
2015-08-28Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20150710-openssl-VSG.nasl - Type : ACT_GATHER_INFO
2015-08-21Name : The remote web server is running an application that is affected by multiple ...
File : splunk_625.nasl - Type : ACT_GATHER_INFO
2015-08-20Name : The remote application is affected by a certificate validation bypass vulnera...
File : securitycenter_openssl_1_0_1p.nasl - Type : ACT_GATHER_INFO
2015-07-14Name : The remote Fedora host is missing a security update.
File : fedora_2015-11414.nasl - Type : ACT_GATHER_INFO
2015-07-14Name : The remote Fedora host is missing a security update.
File : fedora_2015-11475.nasl - Type : ACT_GATHER_INFO
2015-07-13Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2015-190-01.nasl - Type : ACT_GATHER_INFO
2015-07-13Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2015-564.nasl - Type : ACT_GATHER_INFO
2015-07-13Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_075952fe267e11e59d033c970e169bc2.nasl - Type : ACT_GATHER_INFO
2015-07-09Name : The remote host is affected by multiple vulnerabilities.
File : openssl_1_0_1p.nasl - Type : ACT_GATHER_INFO
2015-07-09Name : The remote host is affected by multiple vulnerabilities.
File : openssl_1_0_2d.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

SourceUrl
BID http://www.securityfocus.com/bid/75652
http://www.securityfocus.com/bid/91787
CISCO http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa...
CONFIRM http://fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-c...
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10694
http://openssl.org/news/secadv_20150709.txt
http://www.fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternati...
http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisori...
https://git.openssl.org/?p=openssl.git;a=commit;h=9a0db453ba017ebcaccbee933ee...
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_n...
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_n...
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_n...
https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Cente...
https://kc.mcafee.com/corporate/index?page=content&id=SB10125
EXPLOIT-DB https://www.exploit-db.com/exploits/38640/
FEDORA http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161747.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161782.html
FREEBSD https://www.freebsd.org/security/advisories/FreeBSD-SA-15:12.openssl.asc
GENTOO https://security.gentoo.org/glsa/201507-15
HP http://marc.info/?l=bugtraq&m=143880121627664&w=2
http://marc.info/?l=bugtraq&m=144370846326989&w=2
NETBSD http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc
SECTRACK http://www.securitytracker.com/id/1032817
SLACKWARE http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&...

Alert History

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DateInformations
2019-03-19 12:07:00
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2018-12-01 00:18:57
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2017-10-20 09:23:00
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2017-09-14 09:21:03
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2016-12-29 13:20:14
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2016-12-28 09:22:04
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2016-12-24 09:24:10
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2016-12-22 09:23:54
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2016-12-08 09:23:40
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2016-12-07 21:24:34
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2016-12-03 09:24:07
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2016-11-29 00:25:06
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2016-10-26 09:22:45
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2016-10-18 12:04:25
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2016-08-23 09:24:53
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2016-08-17 09:23:50
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2016-08-09 09:24:05
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2016-07-22 12:03:23
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2016-04-25 21:26:32
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2016-04-22 09:25:25
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2016-04-12 00:25:05
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2016-04-07 09:21:50
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2016-03-25 13:26:21
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2016-01-22 13:25:35
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2016-01-22 09:22:24
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2015-12-22 13:25:21
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2015-12-18 13:27:33
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2015-11-24 21:28:02
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2015-10-30 13:24:08
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2015-10-23 13:20:14
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2015-10-23 09:23:42
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2015-10-21 09:22:34
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2015-10-20 16:20:03
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2015-10-18 17:27:17
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2015-10-18 17:23:44
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2015-09-24 13:24:00
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2015-09-02 21:27:11
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2015-08-29 13:33:51
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2015-08-26 09:30:19
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2015-08-22 13:31:02
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2015-08-21 13:20:16
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2015-08-20 21:27:34
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2015-08-11 21:22:52
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2015-07-18 13:28:35
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2015-07-16 09:29:49
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2015-07-10 17:26:18
  • Multiple Updates
2015-07-10 00:25:58
  • First insertion