Multiple DoS vulnerabilities in Drachtio Server



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-47515
CVE-2022-47516
CWE-ID CWE-20
CWE-617
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Drachtio Server
Server applications / Conferencing, Collaboration and VoIP solutions

Vendor drachtio

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU73167

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-47515

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a long message in a TCP request to the server and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Drachtio Server: 0.2.0 - 0.8.19 rc14

CPE2.3 External links

https://github.com/drachtio/drachtio-server/issues/245
https://github.com/drachtio/drachtio-server/commit/4cf9fe2c420b86c16442215d449d40be777c1911


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.

2) Reachable Assertion

EUVDB-ID: #VU73166

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-47516

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion within libsofia-sip-ua/tport/tport.c. A remote attacker can send a specially crafted UDP request to the server and perform a denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Drachtio Server: 0.2.0 - 0.8.19 rc14

CPE2.3 External links

https://github.com/davehorton/sofia-sip/commit/13b2a135287caa2d67ac6cd5155626821e25b377
https://github.com/drachtio/drachtio-server/issues/244
https://lists.debian.org/debian-lts-announce/2023/02/msg00028.html


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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