Permissions, Privileges, and Access Controls in ldns (Alpine package)

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU33502

Risk: Low

CVSSv3.1: 3.5 [CVSS:3.1/CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-3209

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local non-authenticated attacker to gain access to sensitive information.

The ldns-keygen tool in ldns 1.6.x uses the current umask to set the privileges of the private key, which might allow local users to obtain the private key by reading the file.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ldns (Alpine package): 1.6.14-r0 - 1.6.16-r0

External links

http://git.alpinelinux.org/aports/commit/?id=f3aadb99a97ccd4e6d82669140d182aea121133e
http://git.alpinelinux.org/aports/commit/?id=469daa00264157a82a8f502ec17cc91a4cb28325
http://git.alpinelinux.org/aports/commit/?id=10451e612056fa95be355d01c1f18ba3b07171f8
http://git.alpinelinux.org/aports/commit/?id=6073c5a9210e575766673d826a27a11d697ac2f2
http://git.alpinelinux.org/aports/commit/?id=ad1127d45af2d379c9a28fdef7b0e51da0af3f60

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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