Trojan.Win32.Sharer.h HFS HTTP File Server buffer overflow

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CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Trojan.Win32.Sharer.h (unknown version). This issue affects an unknown part of the component HFS HTTP File Server. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-120. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was published 04/08/2021 as MVID-2021-0160. It is possible to read the advisory at malvuln.com. The identification of this vulnerability is CVE-2020-13432 since 05/24/2020. The exploitation is known to be easy. The attack may be initiated remotely. A simple authentication is necessary for exploitation. Technical details are unknown but a public exploit is available.

It is declared as proof-of-concept. The exploit is available at malvuln.com.

Addressing this vulnerability is possible by firewalling .

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VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 5.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

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VulDB Base Score: 🔒
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VulDB Reliability: 🔍

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Exploitinginfoedit

Class: Memory corruption
CWE: CWE-120
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Countermeasuresinfoedit

Recommended: Firewall
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

05/24/2020 CVE assigned
04/08/2021 +319 days Advisory disclosed
04/08/2021 +0 days VulDB entry created
04/11/2021 +3 days VulDB last update

Sourcesinfoedit

Advisory: MVID-2021-0160
Status: Confirmed

CVE: CVE-2020-13432 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfoedit

Created: 04/08/2021 07:55 AM
Updated: 04/11/2021 04:04 PM
Changes: (18) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss2_nvd_basescore vulnerability_cvss3_nvd_basescore
Complete: 🔍
Submitter: malvuln

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