VDB-114821 · CVE-2018-5438 · BID 102847

Philips ISCV up to 2.2.x Session Expiration session expiration

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Philips ISCV up to 2.2.x. It has been rated as critical. This vulnerability affects unknown code of the component Session Expiration. The manipulation leads to session expiration. This vulnerability is documented as CVE-2018-5438. The attack needs to be performed locally. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Philips ISCV up to 2.2.x. It has been rated as critical. This issue affects an unknown function of the component Session Expiration. The manipulation with an unknown input leads to a session expiration vulnerability. Using CWE to declare the problem leads to CWE-613. According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization." Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Philips ISCV application prior to version 2.3.0 has an insufficient session expiration vulnerability where an attacker could reuse the session of a previously logged in user. This vulnerability exists when using ISCV together with an Electronic Medical Record (EMR) system, where ISCV is in KIOSK mode for multiple users and using Windows authentication. This may allow an attacker to gain unauthorized access to patient health information and potentially modify this information.

The bug was discovered 01/25/2018. The weakness was released 03/20/2018 (Website). The advisory is shared at usa.philips.com. The identification of this vulnerability is CVE-2018-5438 since 01/12/2018. An attack has to be approached locally. The successful exploitation requires a simple authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 54 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.3.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 102847†). Entries connected to this vulnerability are available at VDB-109655, VDB-115070, VDB-115071 and VDB-115073. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Philips

Name

ISCV

Version

License

commercial

Website

Vendor: https://www.philips.ch/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.3
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

Class: Session expiration
CWE: CWE-613
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ISCV 2.3.0

Timelineinfo

01/12/2018 🔍
01/25/2018 +13 days 🔍
01/25/2018 +0 days 🔍
03/20/2018 +54 days 🔍
03/20/2018 +0 days 🔍
03/21/2018 +1 days 🔍
01/15/2020 +665 days 🔍

Sourcesinfo

Vendor: philips.ch

Advisory: usa.philips.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-5438 (🔍)
GCVE (CVE): GCVE-0-2018-5438
GCVE (VulDB): GCVE-100-114821
SecurityFocus: 102847 - Philips IntelliSpace Cardiovascular CVE-2018-5438 Local Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 03/21/2018 09:11
Updated: 01/15/2020 10:02
Changes: 03/21/2018 09:11 (62), 01/15/2020 10:02 (4)
Complete: 🔍
Cache ID: 216::103

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