Apache Tomcat Native Connector up to 1.1.34/1.2.14 OCSP Checker Client certificate validation

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5.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Apache Tomcat Native Connector up to 1.1.34/1.2.14. It has been classified as critical. This issue affects some unknown processing of the component OCSP Checker. Performing a manipulation results in certificate validation (Client). This vulnerability is reported as CVE-2017-15698. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apache Tomcat Native Connector up to 1.1.34/1.2.14 (Application Server Software). It has been classified as critical. This affects an unknown code block of the component OCSP Checker. The manipulation with an unknown input leads to a certificate validation vulnerability (Client). CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

When parsing the AIA-Extension field of a client certificate, Apache Tomcat Native Connector 1.2.0 to 1.2.14 and 1.1.23 to 1.1.34 did not correctly handle fields longer than 127 bytes. The result of the parsing error was to skip the OCSP check. It was therefore possible for client certificates that should have been rejected (if the OCSP check had been made) to be accepted. Users not using OCSP checks are not affected by this vulnerability.

The bug was discovered 01/31/2018. The weakness was disclosed 01/31/2018 (Website). The advisory is shared at lists.apache.org. This vulnerability is uniquely identified as CVE-2017-15698 since 10/21/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 106724 (Debian DLA-1276-1 : tomcat-native security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277190 (Fedora Security Update for tomcat-native (FEDORA-2018-318b5d74bd)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (106724). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Application Server Software

Vendor

• Apache

Name

• Tomcat Native Connector

Version

• 1.1.0
• 1.1.1
• 1.1.2
• 1.1.3
• 1.1.4
• 1.1.5
• 1.1.6
• 1.1.7
• 1.1.8
• 1.1.9
• 1.1.10
• 1.1.11
• 1.1.12
• 1.1.13
• 1.1.14
• 1.1.15
• 1.1.16
• 1.1.17
• 1.1.18
• 1.1.19
• 1.1.20
• 1.1.21
• 1.1.22
• 1.1.23
• 1.1.24
• 1.1.25
• 1.1.26
• 1.1.27
• 1.1.28
• 1.1.29
• 1.1.30
• 1.1.31
• 1.1.32
• 1.1.33
• 1.1.34
• 1.2.0
• 1.2.1
• 1.2.2
• 1.2.3
• 1.2.4
• 1.2.5
• 1.2.6
• 1.2.7
• 1.2.8
• 1.2.9
• 1.2.10
• 1.2.11
• 1.2.12
• 1.2.13
• 1.2.14

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Name: Client
Class: Certificate validation / Client
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 106724
Nessus Name: Debian DLA-1276-1 : tomcat-native security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53464
OpenVAS Name: Fedora Update for tomcat-native FEDORA-2018-7b1517bc6e
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: 🔍

Timelineinfo

10/21/2017 🔍
01/31/2018 +102 days 🔍
01/31/2018 +0 days 🔍
01/31/2018 +0 days 🔍
02/01/2018 +1 days 🔍
02/11/2018 +10 days 🔍
02/12/2018 +1 days 🔍
02/03/2023 +1817 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: RHSA-2018:0465
Status: Not defined

CVE: CVE-2017-15698 (🔍)
GCVE (CVE): GCVE-0-2017-15698
GCVE (VulDB): GCVE-100-112677

OVAL: 🔍

SecurityTracker: 1040390

Entryinfo

Created: 02/01/2018 07:55
Updated: 02/03/2023 10:20
Changes: 02/01/2018 07:55 (74), 12/31/2019 15:40 (3), 02/02/2021 12:47 (2), 02/03/2023 10:20 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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