Vulnerability Details : CVE-2018-0138
A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass file policies that are configured to block files transmitted to an affected device via the BitTorrent protocol. The vulnerability exists because the affected software does not detect BitTorrent handshake messages correctly. An attacker could exploit this vulnerability by sending a crafted BitTorrent connection request to an affected device. A successful exploit could allow the attacker to bypass file policies that are configured to block files transmitted to the affected device via the BitTorrent protocol. Cisco Bug IDs: CSCve26946.
Products affected by CVE-2018-0138
- cpe:2.3:a:cisco:firepower_threat_defense:6.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:firepower_threat_defense:6.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:firepower_threat_defense:6.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:firepower_threat_defense:6.2.3:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-0138
0.23%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 43 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-0138
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
5.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2018-0138
-
The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)
References for CVE-2018-0138
-
http://www.securityfocus.com/bid/102978
Cisco Firepower System Software CVE-2018-0138 Remote Security Bypass VulnerabilityThird Party Advisory;VDB Entry
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-fss
Cisco Firepower System Software BitTorrent File Policy Bypass VulnerabilityVendor Advisory
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