Vulnerability identifier: #VU17333

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1340

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Guacamole
Server applications / Remote management servers, RDP, SSH

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to use of a cookie for client-side storage of the user's session token that can leak the "secure" flag. A remote attacker can eavesdrop on the network to intercept the user's session token if unencrypted HTTP requests are made to the same domain.

Mitigation
Update to versions 1.0.0.

Vulnerable software versions

Guacamole: 0.9.4 - 0.9.14

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External links
http://mail-archives.us.apache.org/mod_mbox/www-announce/201901.mbox/%3CCALKeL-O+=Rxbd0y+hSB9=Y0N400A8sV2BiKgZfNsjGxZipA-uQ@mail.gmail.com%3E

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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.