CVE-2020-11582

An issue was discovered in Pulse Secure Pulse Connect Secure (PCS) through 2020-04-06. The applet in tncc.jar, executed on macOS, Linux, and Solaris clients when a Host Checker policy is enforced, launches a TCP server that accepts local connections on a random port. This can be reached by local HTTP clients, because up to 25 invalid lines are ignored, and because DNS rebinding can occur. (This server accepts, for example, a setcookie command that might be relevant to CVE-2020-11581 exploitation.)

CVSS v3.0 8.8 HIGH
CVSS v2.0 3.3 LOW

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

3.3^/10

CVSS v2.0 : LOW

Vector : AV:A/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 6.5 / Impact : 2.9

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://git.lsd.cat/g/pulse-host-checker-rce	Exploit Third Party Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426	Vendor Advisory

Advertisement

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:pulsesecure:pulse_connect_secure:*:*:*:*:*:*:*:*

OR	cpe:2.3:o:apple:macos:-:::::::*
	cpe:2.3:o:linux:linux_kernel:-:::::::*
	cpe:2.3:o:oracle:solaris:-:::::::*

Configuration 2 (hide)

cpe:2.3:a:pulsesecure:pulse_policy_secure:-:*:*:*:*:*:*:*

Information

Published : 2020-04-06 14:15

Updated : 2021-09-16 06:44

NVD link : CVE-2020-11582

Mitre link : CVE-2020-11582

JSON object : View

CWE

CWE-668

Exposure of Resource to Wrong Sphere

Advertisement

Products Affected

pulsesecure

pulse_policy_secure
pulse_connect_secure

apple

macos

linux

linux_kernel

oracle

solaris

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://git.lsd.cat/g/pulse-host-checker-rce", "name": "https://git.lsd.cat/g/pulse-host-checker-rce", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426", "name": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426", "tags": ["Vendor Advisory"], "refsource": "CONFIRM"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "An issue was discovered in Pulse Secure Pulse Connect Secure (PCS) through 2020-04-06. The applet in tncc.jar, executed on macOS, Linux, and Solaris clients when a Host Checker policy is enforced, launches a TCP server that accepts local connections on a random port. This can be reached by local HTTP clients, because up to 25 invalid lines are ignored, and because DNS rebinding can occur. (This server accepts, for example, a setcookie command that might be relevant to CVE-2020-11581 exploitation.)"}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-668"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2020-11582", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 3.3, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "severity": "LOW", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 6.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}}, "publishedDate": "2020-04-06T21:15Z", "configurations": {"nodes": [{"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:pulsesecure:pulse_connect_secure:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "2020-04-06"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:o:oracle:solaris:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:pulsesecure:pulse_policy_secure:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-09-16T13:44Z"}