Pulse Secure Pulse Connect Secure up to 8.3R2 rd.cgi Header cross site scripting

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.
4.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Pulse Secure Pulse Connect Secure up to 8.3R2. This impacts an unknown function of the file rd.cgi. This manipulation as part of Header causes cross site scripting. This vulnerability is tracked as CVE-2018-20808. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Pulse Secure Pulse Connect Secure up to 8.3R2 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file rd.cgi. The manipulation as part of a Header leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

An XSS issue has been found with rd.cgi in Pulse Secure Pulse Connect Secure 8.3RX before 8.3R3 due to improper header sanitization. This is not applicable to 8.1RX.

The bug was discovered 03/15/2019. The weakness was disclosed 06/28/2019 (Website). It is possible to read the advisory at kb.pulsesecure.net. This vulnerability is known as CVE-2018-20808 since 03/15/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 105 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 8.3R3 eliminates this vulnerability.

The entries VDB-137048, VDB-137049, VDB-137050 and VDB-137051 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

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

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Pulse Connect Secure 8.3R3

Timelineinfo

03/15/2019 🔍
03/15/2019 +0 days 🔍
06/28/2019 +105 days 🔍
06/28/2019 +0 days 🔍
06/28/2020 +366 days 🔍

Sourcesinfo

Advisory: kb.pulsesecure.net
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-20808 (🔍)
GCVE (CVE): GCVE-0-2018-20808
GCVE (VulDB): GCVE-100-137047
OSVDB: - Pulse Secure Pulse Connect Secure cross-site scripting

See also: 🔍

Entryinfo

Created: 06/28/2019 23:47
Updated: 06/28/2020 21:39
Changes: 06/28/2019 23:47 (61), 06/28/2020 21:39 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!