VDB-123677 · CVE-2018-16261 · Qualys 371177

Pulse Secure Desktop Client up to 5.3R4 Dynamic Certificate Trust access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Pulse Secure Desktop Client up to 5.3R4. This issue affects some unknown processing of the component Dynamic Certificate Trust. The manipulation leads to access control. This vulnerability is uniquely identified as CVE-2018-16261. It is possible to launch the attack on the physical device. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Pulse Secure Desktop Client up to 5.3R4. It has been rated as critical. This issue affects an unknown functionality of the component Dynamic Certificate Trust. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In Pulse Secure Pulse Desktop Client 5.3RX before 5.3R5 and 9.0R1, there is a Privilege Escalation Vulnerability with Dynamic Certificate Trust.

The bug was discovered 08/24/2018. The weakness was disclosed 09/06/2018 (Website). The advisory is shared at kb.pulsesecure.net. The identification of this vulnerability is CVE-2018-16261 since 08/31/2018. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 13 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371177 (Pulse Secure Desktop Multiple Vulnerabilities(SA43877)).

Upgrading to version 5.3RX eliminates this vulnerability.

The entries VDB-123673, VDB-123674, VDB-123675 and VDB-123676 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

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

NVD Base Score: 6.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Desktop Client 5.3RX

Timelineinfo

08/24/2018 🔍
08/31/2018 +6 days 🔍
09/06/2018 +6 days 🔍
09/06/2018 +0 days 🔍
09/07/2018 +1 days 🔍
03/21/2020 +561 days 🔍

Sourcesinfo

Advisory: kb.pulsesecure.net
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-16261 (🔍)
GCVE (CVE): GCVE-0-2018-16261
GCVE (VulDB): GCVE-100-123677
See also: 🔍

Entryinfo

Created: 09/07/2018 07:46
Updated: 03/21/2020 10:04
Changes: 09/07/2018 07:46 (61), 03/21/2020 10:04 (2)
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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