CVE-2021-28840
Description
Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_config function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the content in upload_file variable is NULL in the upload_config function then the strncasecmp would take NULL as first argument, and incur the NULL pointer dereference vulnerability.
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Affected products
4- D-Link/DAP-2310description
Patches
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Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
3- github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdfmitrex_refsource_MISC
- github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve2.pdfmitrex_refsource_MISC
- www.dlink.com/en/security-bulletin/mitrex_refsource_MISC
News mentions
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