OpenSSL up to 1.1.0e Encrypt-Then-Mac input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenSSL up to 1.1.0e and classified as problematic. This affects an unknown part of the component Encrypt-Then-Mac. Executing a manipulation can lead to input validation. This vulnerability is handled as CVE-2017-3733. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in OpenSSL up to 1.1.0e (Network Encryption Software). This vulnerability affects an unknown code of the component Encrypt-Then-Mac. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability.

The bug was discovered 02/16/2017. The weakness was released 02/16/2017 by Joe Orton with Red Hat as 20170216.txt as confirmed advisory (Website). The advisory is available at openssl.org. The public release was coordinated with the vendor. This vulnerability was named CVE-2017-3733 since 12/16/2016. The attack can be initiated remotely. A single authentication is needed for exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 97219 (FreeBSD : openssl -- crash on handshake (1a802ba9-f444-11e6-9940-b499baebfeaf)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38661 (OpenSSL Encrypt-Then-Mac Renegotiation Denial of Service (OpenSSL Security Advisory 20170216)).

Upgrading to version 1.0.2 or 1.1.0e eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97219), SecurityFocus (BID 96269†) and SecurityTracker (ID 1037846†). Entries connected to this vulnerability are available at VDB-68431, VDB-89667, VDB-92931 and VDB-95678. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97219
Nessus Name: FreeBSD : openssl -- crash on handshake (1a802ba9-f444-11e6-9940-b499baebfeaf)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800489
OpenVAS Name: OpenSSL Encrypt-Then-Mac Extension Denial of Service Vulnerability (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: OpenSSL 1.0.2/1.1.0e

Timelineinfo

12/16/2016 🔍
02/16/2017 +62 days 🔍
02/16/2017 +0 days 🔍
02/16/2017 +0 days 🔍
02/16/2017 +0 days 🔍
02/16/2017 +0 days 🔍
02/17/2017 +1 days 🔍
02/17/2017 +0 days 🔍
05/04/2017 +76 days 🔍
08/28/2024 +2673 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: 20170216.txt
Researcher: Joe Orton
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2017-3733 (🔍)
GCVE (CVE): GCVE-0-2017-3733
GCVE (VulDB): GCVE-100-97066

OVAL: 🔍

SecurityFocus: 96269 - OpenSSL CVE-2017-3733 Denial of Service Vulnerability
OSVDB: - CVE-2017-3733 - OpenSSL - Denial of Service Issue
SecurityTracker: 1037846

See also: 🔍

Entryinfo

Created: 02/17/2017 14:12
Updated: 08/28/2024 20:46
Changes: 02/17/2017 14:12 (79), 08/15/2020 14:28 (8), 08/28/2024 20:46 (19)
Complete: 🔍
Cache ID: 216:A62:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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