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Vulnerability Details : CVE-2017-3732

There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL 1.0.2 before 1.0.2k and 1.1.0 before 1.1.0d. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. For example this can occur by default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very similar to CVE-2015-3193 but must be treated as a separate problem.
Publish Date : 2017-05-04 Last Update Date : 2019-04-23
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- CVSS Scores & Vulnerability Types

CVSS Score
4.3
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Obtain Information
CWE ID 200

- Products Affected By CVE-2017-3732

# Product Type Vendor Product Version Update Edition Language
1 Application Openssl Openssl 1.0.2b Version Details Vulnerabilities
2 Application Openssl Openssl 1.0.2 Version Details Vulnerabilities
3 Application Openssl Openssl 1.0.2i Version Details Vulnerabilities
4 Application Openssl Openssl 1.0.2c Version Details Vulnerabilities
5 Application Openssl Openssl 1.0.2 Beta1 Version Details Vulnerabilities
6 Application Openssl Openssl 1.0.2d Version Details Vulnerabilities
7 Application Openssl Openssl 1.0.2 Beta2 Version Details Vulnerabilities
8 Application Openssl Openssl 1.0.2e Version Details Vulnerabilities
9 Application Openssl Openssl 1.0.2 Beta3 Version Details Vulnerabilities
10 Application Openssl Openssl 1.0.2f Version Details Vulnerabilities
11 Application Openssl Openssl 1.0.2a Version Details Vulnerabilities
12 Application Openssl Openssl 1.0.2h Version Details Vulnerabilities
13 Application Openssl Openssl 1.1.0a Version Details Vulnerabilities
14 Application Openssl Openssl 1.1.0b Version Details Vulnerabilities
15 Application Openssl Openssl 1.1.0c Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Openssl Openssl 15

- References For CVE-2017-3732

https://www.tenable.com/security/tns-2017-04 CONFIRM
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
https://www.openssl.org/news/secadv/20170126.txt CONFIRM
https://github.com/openssl/openssl/commit/a59b90bf491410f1f2bc4540cc21f1980fd14c5b
https://security.FreeBSD.org/advisories/FreeBSD-SA-17:02.openssl.asc
FREEBSD FreeBSD-SA-17:02
https://security.gentoo.org/glsa/201702-07
GENTOO GLSA-201702-07
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us CONFIRM
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html CONFIRM
https://access.redhat.com/errata/RHSA-2018:2713
REDHAT RHSA-2018:2713
https://access.redhat.com/errata/RHSA-2018:2575
REDHAT RHSA-2018:2575
http://www.securityfocus.com/bid/95814
BID 95814 OpenSSL CVE-2017-3732 Information Disclosure Vulnerability Release Date:2018-10-15
https://access.redhat.com/errata/RHSA-2018:2568
REDHAT RHSA-2018:2568
https://access.redhat.com/errata/RHSA-2018:2185
REDHAT RHSA-2018:2185
https://access.redhat.com/errata/RHSA-2018:2187
REDHAT RHSA-2018:2187
https://access.redhat.com/errata/RHSA-2018:2186
REDHAT RHSA-2018:2186
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html CONFIRM
http://www.securitytracker.com/id/1037717
SECTRACK 1037717
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html CONFIRM

- Metasploit Modules Related To CVE-2017-3732

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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