Vulnerability Details : CVE-2021-43722
Potential exploit
D-Link DIR-645 1.03 A1 is vulnerable to Buffer Overflow. The hnap_main function in the cgibin handler uses sprintf to format the soapaction header onto the stack and has no limit on the size.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2021-43722
- cpe:2.3:o:dlink:dir-645_firmware:1.03:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-43722
0.43%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-43722
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-43722
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-43722
-
https://www.dlink.com/en/security-bulletin/
Security Bulletin | D-LinkVendor Advisory
-
https://github.com/luqiut/iot/blob/main/DIR-645%20Stack%20overflow.md
iot/DIR-645 Stack overflow.md at main · luqiut/iot · GitHubExploit;Third Party Advisory
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