Vulnerability identifier: #VU18426

Vulnerability risk: Medium

CVSSv3.1: 6.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:F/RL:O/RC:C]

CVE-ID: CVE-2019-3799

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Spring Cloud Config
Server applications / Application servers

Vendor: Pivotal

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists because the spring-cloud-config-server module of the affected software allows applications to serve static resources from a file system. A remote attacker can send a specially crafted HTTP request and read, overwrite or delete arbitrary files on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Spring Cloud Config: 1.0.0. - v2.1.1.

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External links
http://github.com/mpgn/CVE-2019-3799
http://pivotal.io/security/cve-2019-3799

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.