Vulnerability Details : CVE-2020-27862
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DVA-2800 and DSL-2888A routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dhttpd service, which listens on TCP port 8008 by default. When parsing the path parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the web server. Was ZDI-CAN-10911.
Vulnerability category: Execute code
Products affected by CVE-2020-27862
- cpe:2.3:o:dlink:dsl-2888a_firmware:2.30_au:*:*:*:*:*:*:*
- cpe:2.3:o:dlink:dva-2800_firmware:2.30_au:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-27862
3.37%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 86 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-27862
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.8
|
MEDIUM | AV:A/AC:L/Au:N/C:P/I:P/A:P |
6.5
|
6.4
|
NIST | |
8.8
|
HIGH | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
Zero Day Initiative | |
8.8
|
HIGH | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2020-27862
-
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.Assigned by:
- nvd@nist.gov (Secondary)
- zdi-disclosures@trendmicro.com (Primary)
References for CVE-2020-27862
-
https://www.zerodayinitiative.com/advisories/ZDI-20-1426/
ZDI-20-1426 | Zero Day InitiativeThird Party Advisory;VDB Entry
-
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10196
D-Link Technical SupportVendor Advisory
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