CVE-2021-27114

CVSS V2 High 7.5 CVSS V3 Critical 9.8

Description

An issue was discovered in D-Link DIR-816 A2 1.10 B05 devices. Within the handler function of the /goform/addassignment route, a very long text entry for the"'s_ip" and "s_mac" fields could lead to a Stack-Based Buffer Overflow and overwrite the return address.

Overview

CVE ID
CVE-2021-27114

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2021-04-14T14:15:13

Last Modified Date
2021-04-20T21:47:35

Weakness Enumerations

CWE	URL
CWE-787	http://cwe.mitre.org/data/definitions/787.html

CPE Configuration (Product)

CPE	Vulnerable	Operator
		AND
cpe:2.3:o:dlink:dir-816_firmware:1.10b05:::::::*	1	OR
cpe:2.3:h:dlink:dir-816:a2:::::::*	0	OR

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
7.5

Severity
HIGH

Exploitability Score
10

Impact Score
6.4

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
9.8

Base Severity
CRITICAL

Exploitability Score
3.9

Impact Score
5.9

References

Reference URL	Reference Tags
https://www.dlink.com/en/security-bulletin/	Vendor Advisory
https://github.com/GD008/vuln/blob/main/DIR-816_stackoverflow.md	Exploit Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-27114
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27114

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:15:05				Added to TrackCVE
2022-12-06 01:54:44	2021-04-14T14:15Z	2021-04-14T14:15:13	CVE Published Date	updated
2022-12-06 01:54:44		2021-04-20T21:47:35	CVE Modified Date	updated
2022-12-06 01:54:44		Analyzed	Vulnerability Status	updated