Man-in-the-middle attack in pdns-recursor (Alpine package)



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-15090
CWE-ID CWE-300
Exploitation vector Network
Public exploit N/A
Vulnerable software
 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) Man-in-the-middle attack

EUVDB-ID: #VU9437

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-15090

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

Exploit availability: No

Description

The vulnerability allows a remote attacker to conduct man-in-the-middle attack.

The weakness exists due to improper validation of DNSSEC component of PowerDNS Recursor. A remote attacker can use man-in-the-middle technique, issue a valid signature for the crafted records and alter the content of records.

Mitigation

Install update from vendor's website.

Vulnerable software versions

pdns-recursor (Alpine package): 4.0.4-r0 - 4.0.9-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=d4b0f51ac1e8c9d50821593f4982da6bdb1c68a5
https://git.alpinelinux.org/aports/commit/?id=cc8761a9a2849c5e5a49af8667dbea9a2aeb990d
https://git.alpinelinux.org/aports/commit/?id=0821b9aa215845c51715531d9478f41a9322f98c


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.



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