CVE-2020-15260
PJSIP TLS Hostname Reuse Vulnerability
Description
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In version 2.10 and earlier, PJSIP transport can be reused if they have the same IP address + port + protocol. However, this is insufficient for secure transport since it lacks remote hostname authentication. Suppose we have created a TLS connection to `sip.foo.com`, which has an IP address `100.1.1.1`. If we want to create a TLS connection to another hostname, say `sip.bar.com`, which has the same IP address, then it will reuse that existing connection, even though `100.1.1.1` does not have certificate to authenticate as `sip.bar.com`. The vulnerability allows for an insecure interaction without user awareness. It affects users who need access to connections to different destinations that translate to the same address, and allows man-in-the-middle attack if attacker can route a connection to another destination such as in the case of DNS spoofing.
INFO
Published Date :
March 10, 2021, 11:15 p.m.
Last Modified :
July 22, 2022, 12:49 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.0
Exploitability Score :
2.2
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-15260.
| URL | Resource |
|---|---|
| https://github.com/pjsip/pjproject/commit/67e46c1ac45ad784db5b9080f5ed8b133c122872 | Patch Third Party Advisory |
| https://github.com/pjsip/pjproject/pull/2663 | Patch Third Party Advisory |
| https://github.com/pjsip/pjproject/security/advisories/GHSA-8hcp-hm38-mfph | Patch Third Party Advisory |
| https://security.gentoo.org/glsa/202107-42 | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-15260 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-15260 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Jul. 22, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202107-42 No Types Assigned https://security.gentoo.org/glsa/202107-42 Third Party Advisory Added CWE NIST CWE-295 -
CVE Modified by [email protected]
Jul. 20, 2021
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202107-42 [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 25, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N Changed Reference Type https://github.com/pjsip/pjproject/commit/67e46c1ac45ad784db5b9080f5ed8b133c122872 No Types Assigned https://github.com/pjsip/pjproject/commit/67e46c1ac45ad784db5b9080f5ed8b133c122872 Patch, Third Party Advisory Changed Reference Type https://github.com/pjsip/pjproject/pull/2663 No Types Assigned https://github.com/pjsip/pjproject/pull/2663 Patch, Third Party Advisory Changed Reference Type https://github.com/pjsip/pjproject/security/advisories/GHSA-8hcp-hm38-mfph No Types Assigned https://github.com/pjsip/pjproject/security/advisories/GHSA-8hcp-hm38-mfph Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:* versions up to (including) 2.10
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-15260 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-15260
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} -0.00%
score
0.30738
percentile