Pulse Secure Pulse Connect Secure/Pulse Policy Secure login.cgi Host Header input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Pulse Secure Pulse Connect Secure and Pulse Policy Secure. It has been classified as critical. Affected by this vulnerability is an unknown functionality of the file login.cgi. The manipulation as part of Host Header leads to input validation. This vulnerability is referenced as CVE-2018-6320. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Pulse Secure Pulse Connect Secure and Pulse Policy Secure (unknown version). It has been rated as critical. This issue affects an unknown code block of the file login.cgi. The manipulation as part of a Host Header leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been discovered in login.cgi in Pulse Secure Pulse Connect Secure (PCS) 8.1RX before 8.1R12 and 8.3RX before 8.3R2 and Pulse Policy Secure (PPS) 5.2RX before 5.2R9 and 5.4RX before 5.4R2 wherein an http(s) Host header received from the browser is trusted without validation.

The bug was discovered 01/26/2018. The weakness was published 09/06/2018 (Website). It is possible to read the advisory at kb.pulsesecure.net. The identification of this vulnerability is CVE-2018-6320 since 01/25/2018. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 223 days. During that time the estimated underground price was around $0-$5k.

Upgrading eliminates this vulnerability.

Similar entries are available at VDB-123673, VDB-123674, VDB-123675 and VDB-123676. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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: 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/25/2018 🔍
01/26/2018 +0 days 🔍
09/06/2018 +222 days 🔍
09/06/2018 +0 days 🔍
09/07/2018 +1 days 🔍
03/21/2020 +561 days 🔍

Sourcesinfo

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

CVE: CVE-2018-6320 (🔍)
GCVE (CVE): GCVE-0-2018-6320
GCVE (VulDB): GCVE-100-123695
See also: 🔍

Entryinfo

Created: 09/07/2018 07:56
Updated: 03/21/2020 11:27
Changes: 09/07/2018 07:56 (58), 03/21/2020 11:27 (2)
Complete: 🔍
Cache ID: 216::103

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