CVE-2020-28361
Kamailio Sip Express Router Header Injection Bypass
Description
Kamailio before 5.4.0, as used in Sip Express Router (SER) in Sippy Softswitch 4.5 through 5.2 and other products, allows a bypass of a header-removal protection mechanism via whitespace characters. This occurs in the remove_hf function in the Kamailio textops module. Particular use of remove_hf in Sippy Softswitch may allow skilled attacker having a valid credential in the system to disrupt internal call start/duration accounting mechanisms leading potentially to a loss of revenue.
INFO
Published Date :
Nov. 18, 2020, 2:15 p.m.
Last Modified :
Dec. 3, 2020, 1:07 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.5
Exploitability Score :
2.8
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-2020-28361.
| URL | Resource |
|---|---|
| https://packetstormsecurity.com/files/159030/Kamailio-5.4.0-Header-Smuggling.html | Exploit Third Party Advisory VDB Entry |
| https://support.sippysoft.com/support/discussions/topics/3000179616 | Permissions Required |
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-2020-28361 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-28361 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 -
Initial Analysis by [email protected]
Dec. 03, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Changed Reference Type https://packetstormsecurity.com/files/159030/Kamailio-5.4.0-Header-Smuggling.html No Types Assigned https://packetstormsecurity.com/files/159030/Kamailio-5.4.0-Header-Smuggling.html Exploit, Third Party Advisory, VDB Entry Changed Reference Type https://support.sippysoft.com/support/discussions/topics/3000179616 No Types Assigned https://support.sippysoft.com/support/discussions/topics/3000179616 Permissions Required Added CWE NIST CWE-444 Added CPE Configuration OR *cpe:2.3:a:kamailio:kamailio:*:*:*:*:*:*:*:* versions up to (excluding) 5.4.0 -
CVE Modified by [email protected]
Nov. 19, 2020
Action Type Old Value New Value Changed Description Kamailio before 5.4.0, as used in Sip Express Router (SER) in Sippy Softswitch 4.5 through 5.2 and other products, allows a bypass of a header-removal protection mechanism via whitespace characters. This occurs in the remove_hf function in the Kamailio textops module. Kamailio before 5.4.0, as used in Sip Express Router (SER) in Sippy Softswitch 4.5 through 5.2 and other products, allows a bypass of a header-removal protection mechanism via whitespace characters. This occurs in the remove_hf function in the Kamailio textops module. Particular use of remove_hf in Sippy Softswitch may allow skilled attacker having a valid credential in the system to disrupt internal call start/duration accounting mechanisms leading potentially to a loss of revenue.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-28361 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-2020-28361
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.26450
percentile