Information disclosure in Apache Guacamole

1) Information disclosure

EUVDB-ID: #VU17333

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 - Information exposure

Exploit availability: No

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

External links

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

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.