Link following in harp

1) Link following

EUVDB-ID: #VU25108

Risk: Medium

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: N/A

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a remote attacker to access unauthorised files.

The vulnerability exists due to a symlink following issue. A remote attacker can create a specially crafted symbolic link to a critical file on the system and can gain access to unauthorised files.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Harp: 0.1.0 - 0.31.0

External links

http://snyk.io/vuln/SNYK-JS-HARP-544928
http://github.com/sintaxi/harp/pull/659

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.