CVE-2018-0138 - Protection Mechanism Failure

Severity

50%

Complexity

99%

Confidentiality

48%

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.

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.

CVSS 3.0 Base Score 5.3. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N).

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N).

Overview

Type

Cisco Firepower Threat Defense

First reported 7 years ago

2018-02-08 07:29:00

Last updated 5 years ago

2019-10-09 23:31:00

Affected Software

Cisco Firepower Threat Defense 6.1.0

6.1.0

Cisco Firepower Threat Defense 6.2.0

6.2.0

Cisco Firepower Threat Defense 6.2.2

6.2.2

Cisco Firepower Threat Defense 6.2.3

6.2.3

References

102978

Third Party Advisory, VDB Entry

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-fss

Vendor Advisory

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