VDB
CVE-2020-28361
CVE-2020-28361
PUBLISHED
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.
EPSS 0.21% · 43.3th percentile
Risk Scores
EPSS Score
0.21%
43.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:16.04:LTS | kamailio | 4.3.1-2ubuntu1, *, 4.3.4-1.1ubuntu2.1+esm2 |
| Ubuntu:Pro:20.04:LTS | kamailio | 5.3.2-1build2, 5.3.2-1build1, 0 |
| Ubuntu:Pro:18.04:LTS | kamailio | 5.1.2-1ubuntu1, 5.1.2-1ubuntu2, 5.1.2-1ubuntu2+esm1 |
Exploit Intelligence
Timeline
- Nov 18, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-28361 third-party-advisory
- https://packetstormsecurity.com/files/159030/Kamailio-5.4.0-Header-Smuggling.html third-party-advisory
- https://support.sippysoft.com/support/discussions/topics/3000179616 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-28361 third-party-advisory
- https://ubuntu.com/security/notices/USN-7416-1 vendor-advisory