About Plural Security Vulnerabilities in SHARP Multifunctional Products (MFP)

The following security vulnerabilities were identified and may impact some MFPs that are not properly protected with a strong admin password and/or firewall. The following is a summary of the vulnerabilities, affected models, and countermeasures:

Vulnerability identification number	JVNVU#93051062 / See the following Detailed Information of the vulnerabilities for the CVE numbers
Affected models and firmware version	See the separate table below.
Detailed information of the vulnerabilities	CVE-2024-28038: Some device web pages may cause stack-based buffer overflow CVE-2024-28955: Permission is incorrectly assigned for the file in which some sensitive information is stored and they can be viewed by exploiting another vulnerability CVE-2024-29146: Some sensitive information is stored as plain text and can be viewed by exploiting another vulnerability CVE-2024-29978: Some sensitive information is stored as plain text and can be viewed by exploiting another vulnerability CVE-2024-32151: Some sensitive information can be decrypted by exploiting another vulnerability CVE-2024-33605: Some device web pages may cause path traversal attacks CVE-2024-33610: Some device web pages have improper access control authority CVE-2024-33616: Improper credential information for executing some device feature may cause reference to internal information in the device CVE-2024-34162: Some device web pages may send credential information stored in the device unintentionally (This may be used by attackers who already hacked the device and obtained its authority.) CVE-2024-35244: Credential information for executing some device features are hard-coded and can be exploited by attackers who improperly obtained the credential information CVE-2024-36248: Credential information for accessing external sites are hard-coded and can be exploited by attackers who improperly obtained the credential information CVE-2024-36249: Some device web pages may cause cross-site scripting attacks CVE-2024-36251: Some device web pages may cause device hang-up due to out-of-bounds memory reference CVE-2024-36254: Some device web pages may cause device hang-up due to out-of-bounds memory reference
Condition to enable attacks using this vulnerability	To enable attackers to successfully attack the MFP using these vulnerabilities, the following conditions shall be fulfilled: ● The attacker is able to access the corporate network to which the MFP is connected ● The attacker knows the information that users cannot know through normal operation
Possible impacts	If the above conditions are fulfilled, attackers may be able to : 1. execute arbitrary command codes on the MFP 2. read files and data in the programs on the MFP 3. access part of information on the MFP with unintended authority 4. execute cross-site scripting (XSS) on the MFP web page 5. hang the MFP up using crafted HTTP request on the MFP web page
Mitigation measures	To mitigate security risks and the command injection vulnerability, ensure to protect your MFPs and apply the following countermeasures: ● Change admin password from factory default and manage it appropriately. ● Do not connect MFPs directly to the Internet. Connect them via a firewall or similar network appliance. ● Restrict device web page access via password (enable [System Settings]-[Security Settings]-[Restrict Device Web Page Access Via Password]). If the above countermeasures are not practiced, devices may be accessed by attackers and cause data leakage.
Countermeasure	See [Affected models and the status of countermeasures] below. Sharp released updated firmware to mitigate these vulnerabilities for the models listed in Table 1. Regarding the models listed in Table 2, all firmware versions are affected, however, firmware support has ended. Please implement the above mitigation measures or consider discontinuing use of the product or migrating to a successor model. For details, consult your authorized Sharp service providers.
Acknowledgment	We truly appreciate the following people who reported these vulnerabilities: Pierre Barre (CVE-2024-28038, CVE-2024-28955, CVE-2024-29146, CVE-2024-29978, CVE-2024-32151, CVE-2024-33605, CVE-2024-33610, CVE-2024-33616, CVE-2024-34162, CVE-2024-35244, CVE-2024-36248, CVE-2024-36251, CVE-2024-36254), Pontus Hassen security researcher at Omegapoint（https://omegapoint.se) (CVE-2024-33610), Morgan Davies of Cyber Security Specialists (https://www.cybersecurityspecialists.co.uk/) (CVE-2024-36249), Damien BOLUS – Torii Security (CVE-2024-36249), and Jarrod Stebick (CVE-2024-36251 and CVE-2024-36254)
Information	JVNVU#93051062: https://jvn.jp/en/vu/JVNVU93051062/index.html CVE: https://www.cve.org/CVERecord?id=CVE-2024-28038 https://www.cve.org/CVERecord?id=CVE-2024-28955 https://www.cve.org/CVERecord?id=CVE-2024-29146 https://www.cve.org/CVERecord?id=CVE-2024-29978 https://www.cve.org/CVERecord?id=CVE-2024-32151 https://www.cve.org/CVERecord?id=CVE-2024-33605 https://www.cve.org/CVERecord?id=CVE-2024-33610 https://www.cve.org/CVERecord?id=CVE-2024-33616 https://www.cve.org/CVERecord?id=CVE-2024-34162 https://www.cve.org/CVERecord?id=CVE-2024-35244 https://www.cve.org/CVERecord?id=CVE-2024-36248 https://www.cve.org/CVERecord?id=CVE-2024-36249 https://www.cve.org/CVERecord?id=CVE-2024-36251 https://www.cve.org/CVERecord?id=CVE-2024-36254

■ Affected models and the status of countermeasures

Table 1: Countermeasure firmware is available for the following models:

Category	Model name	Firmware version affected (see note) * Check the 2^nd to 4^th digits of the firmware version
Digital Full-color Multifunctional System	BP-90C70/BP-90C80 (Possible impact Nos. 1, 2 and 4 are not affected)	“200” or earlier
	BP-70C65/BP-70C55/BP-70C45/ BP-70C36/BP-70C31/ BP-60C45/BP-60C36/BP-60C31/ BP-50C65/BP-50C55/BP-50C45/ BP-50C36/BP-50C31/BP-50C26/ BP-55C26 (Possible impact No. 2 is not affected)	“310” or earlier
	MX-8081/MX-7081	“150” or earlier
	MX-6071/MX-5071/MX-4071/ MX-3571/MX-3071/ MX-4061/MX-3561/MX-3061/ MX-6051/MX-5051/MX-4051/ MX-3551/MX-3051/MX-2651/ MX-6071S/MX-5071S/MX-4071S/ MX-3571S/MX-3071S MX-4061S/MX-3561S/MX-3061S (Possible impact No. 2 is not affected)	“612” or earlier
	BP-30C25 BP-30C25Y BP-30C25Z BP-30C25T	“123” or earlier
	MX-7580N/MX-6580N	“502” or earlier
	MX-8090N/MX-7090N	“404” or earlier
	MX-6070N/MX-5070N/MX-4070N/ MX-3570N/MX-3070N/ MX-4060N/MX-3560N/MX-3060N/ MX-6070V/MX-5070V/MX-4070V/ MX-3570V/MX-3070V/ MX-4060V/MX-3560V/MX-3060V/ MX-6070N A/MX-4070N A/MX-3070N A MX-6070V A/MX-4070V A/MX-3070V A	“801” or earlier
	MX-6050N/MX-5050N/ MX-4050N/MX-3550N/MX-3050N/ MX-6050V/MX-5050V/ MX-4050V/MX-3550V/MX-3050V/ MX-2630N/ MX-3050N A/ MX-3050V A	“801” or earlier
	MX-C304W/MX-C303W/ MX-C304/MX-C303/ MX-C304WH/MX-C303WH	“512” or earlier
	DX-2500N/DX-2000U (Possible impacts Nos. 2, 4 and 5 are not affected)	“202” or earlier
Digital Multifunctional System (Monochrome)	BP-70M90/BP-70M75 (Possible impact No. 2 is not affected)	“303” or earlier
	BP-70M65/BP-70M55/BP-70M45/ BP-70M36/BP-70M31/ BP-50M55/BP-50M50/BP-50M45/ BP-50M36/BP-50M31/BP-50M26 (Possible impact No. 2 is not affected)	“310” or earlier
	MX-M1206/MX-M1056	“113” or earlier
	MX-M7570/MX-M6570	“455” or earlier
	MX-M6071/MX-M5071/MX-M4071/ MX-M3571/MX-M3071/ MX-M6051/MX-M5051/MX-M4051/ MX-M3551/MX-M3051/MX-M2651/ MX-M3571S/MX-M3071S/ MX-M6071S/MX-M5071S/MX-M4071S (Possible impact No. 2 is not affected)	“412” or earlier
	BP-30M35/BP-30M31/BP-30M28/ BP-30M35T/BP-30M31T/BP-30M28T	“211” or earlier
	MX-B476W/MX-B376W/ MX-B456W/MX-B356W/ MX-B476WH/MX-B376WH/ MX-B456WH/MX-B356WH	“412” or earlier
	MX-M905	“611” or earlier
	MX-M6070/MX-M5070/MX-M4070/ MX-M3570/MX-M3070/ MX-M6050/MX-M5050/MX-M4050/ MX-M3550/MX-M3050/ MX-M2630/ MX-M6070 A/MX-M4070 A/MX-M3070 A/ MX-M3050 A/ MX-M2630 A	“502” or earlier
	BP-B550WD/BP-B540WR/ BP-B547WD/BP-B537WR (Possible impact No. 2 is not affected)	“250” or earlier
	MX-B455W/MX-B355W/ MX-B455WZ/MX-B355WZ/ MX-B455WT/MX-B355WT	“404” or earlier

NOTE: Follow the steps to check firmware version of your MFP.
Administrator login is required:

● Select [Settings] icon from the operation panel.
If you are accessing the MFP from your PC within the network, you may access the MFP settings via Web browser by entering its IP address.
● Select [Status] tab.
Select [Firmware version].
● The 16-digit alphanumeric string after “BUNDLE” (two 8-digit alphanumeric strings connected with an underscore) is the firmware
version(e.g., 0510Z200_22040400).

Table 2: For the following models, firmware support has ended. Please implement the above mitigation measures or consider discontinuing use of the product or migrating to a successor model:

Category	Model name
Digital Full-color Multifunctional System	MX-7500N/MX-6500N (Possible impact Nos. 2 and 5 are not affected)
	MX-7040N/MX-6240N (Possible impact Nos. 2 and 5 are not affected)
	MX-5141N/MX-5140N/MX-4141N/MX-4140N/ MX-5141N A/MX-4140N A (Possible impact No. 2 is not affected)
	MX-3640N/MX-3140N/MX-2640N/MX-3140N A/ MX-3640NR/MX-3140NR/MX-2640NR (Possible impact Nos. 2 and 5 are not affected)
	MX-3116N/MX-2616N/ MX-3115N/MX-2615N/MX-2615 A (Possible impact Nos. 2, 4 and 5 are not affected)
	MX-5112N/MX-5111N/MX-5110N/MX-4112N/MX-4111N/MX-4110N (Possible impact Nos. 2 and 5 are not affected)
	MX-3610N/MX-3110N/MX-2610N/MX-3110N A/MX-3610NR (Possible impact Nos. 2 and 5 are not affected)
	MX-C301W/MX-C301 (Possible impact Nos. 2, 4 and 5 are not affected)
	MX-2314N/MX-2314NR (Possible impact Nos. 2, 4 and 5 are not affected)
	MX-3111U/MX-2310U/MX-2310R (Possible impact Nos. 2, 4 and 5 are not affected)
	MX-2010U/MX-1810U (Possible impact Nos. 2, 4 and 5 are not affected)
	MX-C401/DX-C401/DX-C401 J/MX-C400/DX-C400/ MX-C381/DX-C381/MX-C380/MX-C381B MX-C312/MX-C311/DX-C311/DX-C311J/MX-C310/DX-C310/ MX-C400P/MX-C380P/ MX-C402SC/MX-C382SC/MX-C382SCB (Possible impacts Nos. 2, 4 and 5 are not affected)
	MX-5001N/MX-5000N/MX-4101N/MX-4100N (Possible impact Nos. 2, 4 and 5 are not affected)
	MX-3100N/MX-3100G/MX-2600N/MX-2600G (Possible impact Nos. 2, 4 and 5 are not affected)
	MX-3101N/MX-2601N/MX-2301N (Possible impact Nos. 2, 4 and 5 are not affected)
Digital Multifunctional System (Monochrome)	MX-M1205/MX-M1055 (Possible impact Nos. 2 and 5 are not affected)
	MX-M1204/MX-M1054/MX-M904 (Possible impact Nos. 2 and 5 are not affected)
	MX-M754N/MX-M654N/MX-M754N A/MX-M654N A (Possible impact No. 2 is not affected)
	MX-M565N/MX-M465N/MX-M365N/ MX-M465N A/MX-M365N A (Possible impact No. 2 is not affected)
	MX-M564N/MX-M464N/MX-M364N/MX-M564N A (Possible impact Nos. 2, 4 and 5 are not affected)
	MX-M356N/MX-M316N/MX-M315N/MX-M356U/MX-M315U/ MX-M266N/MX-M265N/MX-M265U/ MX-M315NE/MX-M265NE/ MX-M356NV/MX-M316NV/MX-M315NV/MX-M356UV/MX-M315UV/ MX-M266NV/MX-M265NV/MX-M265UV/ MX-M315NE/MX-M265NE/MX-M315V/MX-M265V (Possible impact Nos. 2, 4 and 5 are not affected)
	MX-M354N/MX-M314N/MX-M264N/ MX-M354U/MX-M314U/MX-M264U/ MX-M314NV/MX-M264NV/ MX-M354NR/MX-M314NR/MX-M264NR (Possible impact Nos. 2, 4 and 5 are not affected)
	MX-B402/MX-B382/ MX-B402P/MX-B382P/ MX-B402SC/MX-B382SC (Possible impact Nos. 2, 4 and 5 are not affected)
	MX-B401/MX-B381/ MX-B400P/MX-B380P (Possible impact Nos. 2, 4 and 5 are not affected)
	MX-M753N/MX-M753U/MX-M623N/MX-M623U (Possible impact Nos. 2, 4 and 5 are not affected)
	MX-M503N/MX-M453N/MX-M363N/MX-M283N/ MX-M503U/MX-M453U/MX-M363U (Possible impact Nos. 2, 4 and 5 are not affected)