Vulnerability Details : CVE-2020-13432
rejetto HFS (aka HTTP File Server) v2.3m Build #300, when virtual files or folders are used, allows remote attackers to trigger an invalid-pointer write access violation via concurrent HTTP requests with a long URI or long HTTP headers.
Vulnerability category: Overflow
Products affected by CVE-2020-13432
- cpe:2.3:a:rejetto:http_file_server:2.3m:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-13432
3.82%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 92 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-13432
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-13432
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-13432
-
http://packetstormsecurity.com/files/157980/HFS-Http-File-Server-2.3m-Build-300-Buffer-Overflow.html
HFS Http File Server 2.3m Build 300 Buffer Overflow ≈ Packet StormExploit;Third Party Advisory;VDB Entry
-
https://github.com/rejetto/hfs2/commit/b8ebfc4e22948e1a61506cd66e397b61ea5ea5de
limit URL parameters to 1000 characters · rejetto/hfs2@b8ebfc4 · GitHubPatch;Third Party Advisory
-
http://hyp3rlinx.altervista.org/advisories/HFS-HTTP-FILE-SERVER-v2.3-REMOTE-BUFFER-OVERFLOW-DoS.txt
Exploit;Third Party Advisory
-
https://www.rejetto.com/hfs/?f=wn
HFS ~ HTTP File ServerRelease Notes;Vendor Advisory
-
http://seclists.org/fulldisclosure/2021/Apr/12
Full Disclosure: Trojan.Win32.Sharer.h / Known Vulnerable Component - Heap Corruption
-
https://packetstormsecurity.com/files/157980/HFS-Http-File-Server-2.3m-Build-300-Buffer-Overflow.html
HFS Http File Server 2.3m Build 300 Buffer Overflow ≈ Packet StormExploit;Third Party Advisory;VDB Entry
-
http://seclists.org/fulldisclosure/2020/Jun/13
Full Disclosure: CVE-2020-13432 - HFS HTTP File Server / Remote Buffer Overflow DoSExploit;Mailing List;Third Party Advisory
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