CVE-2020-5653
published 2020-11-02CVE-2020-5653: Buffer overflow vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits…
PriorityP266critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
3.17%
86.4th percentile
Buffer overflow vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or before) allows a remote unauthenticated attacker to stop the network functions of the products or execute a malicious program via a specially crafted packet.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mitsubishi_electric_corporation | melsec_iq-r_series | — | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
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CISA ICS
Mitsubishi Electric MELSEC iQ-R
cisa_ics·2020-10-30·CVSS 9.8
[CRITICAL] Mitsubishi Electric MELSEC iQ-R
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Mitsubishi Electric MELSEC iQ-R
Last RevisedOctober 30, 2020
Alert CodeICSA-20-303-02
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/low skill level to exploit
- Vendor: Mitsubishi Electric
- Equipment: MELSEC iQ-R
- Vulnerabilities: Improper Restriction of Operations within the Bounds of a Memory Buffer, Session Fixation, NULL Pointer Dereference, Improper Access Control, Argument Injection, Resource Management Errors
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities by malicious attackers may result in network functions enter
GHSA
GHSA-795v-rg6h-pfqw: Buffer overflow vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First
ghsa_unreviewed·2022-05-24
CVE-2020-5653 [CRITICAL] CWE-120 GHSA-795v-rg6h-pfqw: Buffer overflow vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First
Buffer overflow vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or before) allows a remote unauthenticated attacker to stop the network functions of the products or execute a malicious program via a specially crafted packet.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://jvn.jp/vu/JVNVU92513419/index.htmlhttps://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-012.pdfhttps://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-012_en.pdfhttps://jvn.jp/vu/JVNVU92513419/index.htmlhttps://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-012.pdfhttps://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-012_en.pdf
2020-11-02
Published