File injection in pdns-recursor (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2017-15093 |
| CWE-ID | CWE-284 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
pdns-recursor (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) File injection
EUVDB-ID: #VU9440
Risk: Low
CVSSv3.1: 4.4 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-15093
CWE-ID:
CWE-284 - Improper Access Control
Exploit availability: No
DescriptionThe vulnerability allows a remote authenticated attacker to inject API file on the target system.
The vulnerability exists in the API of PowerDNS Recursor during a source code audit by Nixu due to insufficient validation of the new netmask and IP addresses of forwarded zones. A remote attacker can add and remove netmasks when api-config-dir is set to a non-empty value and inject new configuration directives into the Recursor’s configuration.
MitigationInstall update from vendor's website.
Vulnerable software versionspdns-recursor (Alpine package): 4.0.4-r0 - 4.0.9-r0
External linkshttp://git.alpinelinux.org/aports/commit/?id=c9348fdd367c1a3bd5601701acba7353ae984c3a
http://git.alpinelinux.org/aports/commit/?id=cc8761a9a2849c5e5a49af8667dbea9a2aeb990d
http://git.alpinelinux.org/aports/commit/?id=0821b9aa215845c51715531d9478f41a9322f98c
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
