CVE-2020-3315

CVSS V2 Medium 5 CVSS V3 Medium 5.3

Description

Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured file policies on an affected system. The vulnerability is due to errors in how the Snort detection engine handles specific HTTP responses. An attacker could exploit this vulnerability by sending crafted HTTP packets that would flow through an affected system. A successful exploit could allow the attacker to bypass the configured file policies and deliver a malicious payload to the protected network.

Overview

CVE ID
CVE-2020-3315

Assigner
ykramarz@cisco.com

Vulnerability Status
Modified

Published Version
2020-05-06T17:15:13

Last Modified Date
2023-02-19T04:15:11

Weakness Enumerations

CWE	URL
CWE-668	http://cwe.mitre.org/data/definitions/668.html
CWE-693	http://cwe.mitre.org/data/definitions/693.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version End
		AND
cpe:2.3:a:cisco:firepower_management_center:2.9.14.4:::::::*	1	OR
cpe:2.3:a:cisco:firepower_management_center:2.9.15:::::::*	1	OR
cpe:2.3:a:cisco:firepower_management_center:2.9.16:::::::*	1	OR
cpe:2.3:a:cisco:firepower_threat_defense::::::::	1	OR	6.6.0
		AND
cpe:2.3:a:cisco:ios:15.2\(7\)e:::::::*	1	OR
cpe:2.3:o:cisco:ios:16.11.2:::::::*	1	OR
cpe:2.3:o:cisco:ios:17.3.1:::::::*	1	OR
cpe:2.3:h:cisco:csr1000v:-:::::::*	0	OR
cpe:2.3:h:cisco:isa-3000-2c2f-k9:-:::::::*	0	OR
cpe:2.3:h:cisco:isa-3000-4c-k9:-:::::::*	0	OR
cpe:2.3:h:cisco:isr_1101:-:::::::*	0	OR
cpe:2.3:h:cisco:isr_1109:-:::::::*	0	OR
cpe:2.3:h:cisco:isr_1111x:-:::::::*	0	OR
cpe:2.3:h:cisco:isr_111x:-:::::::*	0	OR
cpe:2.3:h:cisco:isr_1120:-:::::::*	0	OR
cpe:2.3:h:cisco:isr_1160:-:::::::*	0	OR
cpe:2.3:h:cisco:isr_4221:-:::::::*	0	OR
cpe:2.3:h:cisco:isr_4331:-:::::::*	0	OR
cpe:2.3:h:cisco:isr_4431:-:::::::*	0	OR
cpe:2.3:h:cisco:isr_4461:-:::::::*	0	OR
cpe:2.3:h:cisco:isr1100-4g:-:::::::*	0	OR
cpe:2.3:h:cisco:isr1100-6g:-:::::::*	0	OR
cpe:2.3:h:cisco:isr1100-lte:-:::::::*	0	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:N/I:P/A:N

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
PARTIAL

Availability Impact
NONE

Base Score
5

Severity
MEDIUM

Exploitability Score
10

Impact Score
2.9

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
NONE

Base Score
5.3

Base Severity
MEDIUM

Exploitability Score
3.9

Impact Score
1.4

References

Reference URL	Reference Tags
https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort_filepolbypass-m4X5DgOP	Vendor Advisory
https://www.debian.org/security/2023/dsa-5354

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-3315
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3315

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 17:32:43				Added to TrackCVE
2022-12-04 16:12:27	psirt@cisco.com	ykramarz@cisco.com	CVE Assigner	updated
2022-12-04 16:12:27	2020-05-06T17:15Z	2020-05-06T17:15:13	CVE Published Date	updated
2022-12-04 16:12:27		2022-10-27T15:47:45	CVE Modified Date	updated
2022-12-04 16:12:27		Analyzed	Vulnerability Status	updated
2023-02-11 03:11:43		2023-02-11T02:20:43	CVE Modified Date	updated
2023-02-11 03:11:43	Analyzed	Modified	Vulnerability Status	updated
2023-02-11 03:11:44			Weakness Enumeration	update
2023-02-11 03:11:44			References	updated
2023-02-19 05:10:59		2023-02-19T04:15:11	CVE Modified Date	updated
2023-02-19 05:11:00			References	updated