#VU22309 Insufficient verification of data authenticity in libpcap - CVE-2019-15162

Vulnerability identifier: #VU22309

Vulnerability risk: Low

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

CVE-ID: CVE-2019-15162

CWE-ID: CWE-345

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libpcap
Universal components / Libraries / Libraries used by multiple products

Vendor: Tcpdump.org

Description

The vulnerability allows a remote attacker to enumerate users on the system.

The vulnerability exists within the rpcapd/daemon.c in libpcap on non-Windows platforms due to the application provides details about failed authenticated attempts. A remote attacker can enumerate users on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libpcap: 1.9.0

---

External links
https://github.com/the-tcpdump-group/libpcap/blob/libpcap-1.9/CHANGES
https://github.com/the-tcpdump-group/libpcap/commit/484d60cbf7ca4ec758c3cbb8a82d68b244a78d58
https://www.tcpdump.org/public-cve-list.txt

---

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.