The Siemens SIMATIC S7-1200 2.x PLC does not properly protect the private key of the SIMATIC CONTROLLER Certification Authority certificate, which allows remote attackers to spoof the S7-1200 web server by using this key to create a forged certificate.

In GNOME evolution-rss through 0.3.96, network-soup.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network MITM attacks. NOTE: this is similar to CVE-2016-20011.

The RBB SPEED TEST App for Android version 2.0.3 and earlier, RBB SPEED TEST App for iOS version 2.1.0 and earlier does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Versions of Motorola Ready For and Motorola Device Help Android applications prior to 2021-04-08 do not properly verify the server certificate which could lead to the communication channel being accessible by an attacker.

In GNOME libzapojit through 0.0.3, zpj-skydrive.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network MITM attacks. NOTE: this is similar to CVE-2016-20011.

Mahara 16.10 before 16.10.7, 17.04 before 17.04.5, and 17.10 before 17.10.2 are vulnerable to being forced, via a man-in-the-middle attack, to interact with Mahara on the HTTP protocol rather than HTTPS even when an SSL certificate is present.

The Net::LDAP (aka net-ldap) gem before 0.16.0 for Ruby has Missing SSL Certificate Validation.

In GNOME libgda through 6.0.0, gda-web-provider.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network MITM attacks. NOTE: this is similar to CVE-2016-20011.

In GNOME libgfbgraph through 0.2.4, gfbgraph-photo.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network MITM attacks. NOTE: this is similar to CVE-2016-20011.

An information-disclosure issue was discovered in Postman through 6.3.0. It validates a server's X.509 certificate and presents an error if the certificate is not valid. Unfortunately, the associated HTTPS request data is sent anyway. Only the response is not displayed. Thus, all contained information of the HTTPS request is disclosed to a man-in-the-middle attacker (for example, user credentials).

The Java WebSocket client nv-websocket-client does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL/TLS servers via an arbitrary valid certificate.

In Redgate SQL Monitor 7.1.4 through 10.1.6 (inclusive), the scope for disabling some TLS security certificate checks can extend beyond that defined by various options on the Configuration > Notifications pages to disable certificate checking for alert notifications. These TLS security checks are also ignored during monitoring of VMware machines. This would make SQL Monitor vulnerable to potential man-in-the-middle attacks when sending alert notification emails, posting to Slack or posting to webhooks. The vulnerability is fixed in version 10.1.7.

txAWS (all current versions) fail to perform complete certificate verification resulting in vulnerability to MitM attacks and information disclosure.

A missing secure communication definition and an incomplete TLS validation in the upgrade service in B&R Automation Studio versions 4.0.x, 4.1.x, 4.2.x, < 4.3.11SP, < 4.4.9SP, < 4.5.5SP, < 4.6.4 and < 4.7.2 enable unauthenticated users to perform MITM attacks via the B&R upgrade server.

The Cybozu kintone mobile for Android 1.0.6 and earlier does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

A vulnerability in the Cisco Smart Call Home feature of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to gain unauthorized read access to sensitive data using an invalid certificate. The vulnerability is due to insufficient certificate validation by the affected software. An attacker could exploit this vulnerability by supplying a crafted certificate to an affected device. A successful exploit could allow the attacker to conduct man-in-the-middle attacks to decrypt confidential information on user connections to the affected software.

Acer Portal app before 3.9.4.2000 for Android does not properly validate SSL certificates, which allows remote attackers to perform a Man-in-the-middle attack via a crafted SSL certificate.

DMMFX Trade for Android 1.5.0 and earlier, DMMFX DEMO Trade for Android 1.5.0 and earlier, and GAITAMEJAPAN FX Trade for Android 1.4.0 and earlier do not verify SSL certificates.

The RICOH Interactive Whiteboard D2200 V1.3 to V2.2, D5500 V1.3 to V2.2, D5510 V1.3 to V2.2, the display versions with RICOH Interactive Whiteboard Controller Type1 V1.3 to V2.2 attached (D5520, D6500, D6510, D7500, D8400), and the display versions with RICOH Interactive Whiteboard Controller Type2 V3.0 to V3.1.10137.0 attached (D5520, D6510, D7500, D8400) does not verify its server certificates, which allows man-in-the-middle attackers to eversdrop on encrypted communication.

IBM WebSphere MQ 8.0 and 9.0 could allow a remote attacker to obtain sensitive information, caused by the failure to properly validate the SSL certificate. An attacker could exploit this vulnerability to obtain sensitive information using man in the middle techniques. IBM X-Force ID: 142598.

The mobiGate App for Android version 2.2.1.2 and earlier and mobiGate App for iOS version 2.2.4.1 and earlier do not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Sensitive information disclosure vulnerability resulting from a lack of certificate validation during the File-Based Backup and Restore operations of VMware vCenter Server Appliance (6.7 before 6.7u3a and 6.5 before 6.5u3d) may allow a malicious actor to intercept sensitive data in transit over FTPS and HTTPS. A malicious actor with man-in-the-middle positioning between vCenter Server Appliance and a backup target may be able to intercept sensitive data in transit during File-Based Backup and Restore operations.

Sensitive information disclosure vulnerability resulting from a lack of certificate validation during the File-Based Backup and Restore operations of VMware vCenter Server Appliance (6.7 before 6.7u3a and 6.5 before 6.5u3d) may allow a malicious actor to intercept sensitive data in transit over SCP. A malicious actor with man-in-the-middle positioning between vCenter Server Appliance and a backup target may be able to intercept sensitive data in transit during File-Based Backup and Restore operations.

IBM QRadar SIEM 7.2.8 WinCollect could allow an attacker to obtain sensitive information by spoofing a trusted entity using man in the middle techniques due to not validating or incorrectly validating a certificate. IBM X-Force ID: 160072.

An exploitable information leak vulnerability exists in the ustream-ssl library of OpenWrt, versions 18.06.4 and 15.05.1. When connecting to a remote server, the server's SSL certificate is checked but no action is taken when the certificate is invalid. An attacker could exploit this behavior by performing a man-in-the-middle attack, providing any certificate, leading to the theft of all the data sent by the client during the first request.An exploitable information leak vulnerability exists in the ustream-ssl library of OpenWrt, versions 18.06.4 and 15.05.1. When connecting to a remote server, the server's SSL certificate is checked but no action is taken when the certificate is invalid. An attacker could exploit this behavior by performing a man-in-the-middle attack, providing any certificate, leading to the theft of all the data sent by the client during the first request.

IBM Security Access Manager 9.0.1 through 9.0.6 does not validate, or incorrectly validates, a certificate which could allow an attacker to spoof a trusted entity by using a man-in-the-middle (MITM) attack. IBM X-Force ID: 158510.

Gateways/Gateway.php in Heartland & Global Payments PHP SDK before 2.0.0 does not enforce SSL certificate validations.

Traefik 2.x, in certain configurations, allows HTTPS sessions to proceed without mutual TLS verification in a situation where ERR_BAD_SSL_CLIENT_AUTH_CERT should have occurred.

A vulnerability in the Web Services Management Agent (WSMA) feature of Cisco Industrial Network Director (IND) could allow an unauthenticated, remote attacker to gain unauthorized read access to sensitive data using an invalid X.509 certificate. The vulnerability is due to insufficient X.509 certificate validation when establishing a WSMA connection. An attacker could exploit this vulnerability by supplying a crafted X.509 certificate during the WSMA connection setup phase. A successful exploit could allow the attacker to conduct man-in-the-middle attacks to decrypt confidential information on WSMA connections to the affected software. At the time of publication, this vulnerability affected Cisco IND Software releases prior to 1.7.

A vulnerability in Cisco Webex Meetings Mobile (iOS) could allow an unauthenticated, remote attacker to gain unauthorized read access to sensitive data by using an invalid Secure Sockets Layer (SSL) certificate. The vulnerability is due to insufficient SSL certificate validation by the affected software. An attacker could exploit this vulnerability by supplying a crafted SSL certificate to an affected device. A successful exploit could allow the attacker to conduct man-in-the-middle attacks to decrypt confidential information on user connections to the affected software.

Missing SSL Certificate Validation in the Nutfind.com application through 3.9.12 for Android allows a man-in-the-middle attacker to sniff and manipulate all API requests, including login credentials and location data.

An exploitable information leak vulnerability exists in the ustream-ssl library of OpenWrt, versions 18.06.4 and 15.05.1. When connecting to a remote server, the server's SSL certificate is checked but no action is taken when the certificate is invalid. An attacker could exploit this behavior by performing a man-in-the-middle attack, providing any certificate, leading to the theft of all the data sent by the client during the first request.An exploitable information leak vulnerability exists in the ustream-ssl library of OpenWrt, versions 18.06.4 and 15.05.1. When connecting to a remote server, the server's SSL certificate is checked but no action is taken when the certificate is invalid. An attacker could exploit this behavior by performing a man-in-the-middle attack, providing any certificate, leading to the theft of all the data sent by the client during the first request. After an SSL connection is initialized via _ustream_ssl_init, and after any data (e.g. the client's HTTP request) is written to the stream using ustream_printf, the code eventually enters the function _ustream_ssl_poll, which is used to dispatch the read/write events

WAON "Service Application" for Android 1.4.1 and earlier does not verify SSL certificates.

The "FNB Kemp Mobile Banking" by First National Bank of Kemp app 3.0.2 -- aka fnb-kemp-mobile-banking/id571448725 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The Radio Javan app 9.3.4 through 9.6.1 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The "RVCB Mobile" by RVCB Mobile Banking app 3.0.0 -- aka rvcb-mobile/id757928895 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The "State Bank of Waterloo Mobile Banking" by State Bank of Waterloo app 3.0.2 -- aka state-bank-of-waterloo-mobile-banking/id555321714 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Coordinate Plus App for Android 1.0.2 and earlier and Coordinate Plus App for iOS 1.0.2 and earlier do not verify SSL certificates.

The Lee Bank & Trust lbtc-mobile/id1068984753 app 3.0.1 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Sushiro App for iOS 2.1.16 and earlier and Sushiro App for Android 2.1.16.1 and earlier do not verify SSL certificates.

The community-banks-cb2go/id445828071 app 3.1.3 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The "SVB Mobile" by Sauk Valley Bank Mobile Banking app 3.0.0 -- aka svb-mobile/id796429885 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

IBM Rational ClearQuest 8.0 through 8.0.1.9 and 9.0 through 9.0.1.3 (CQ OSLC linkages, EmailRelay) fails to check the SSL certificate against the requested hostname. It is subject to a man-in-the-middle attack with an impersonating server observing all the data transmitted to the real server. IBM X-Force ID: 113353.

Acceptance of invalid/self-signed TLS certificates in "Panda Mobile Security" 1.1 for iOS allows a man-in-the-middle and/or physically proximate attacker to silently intercept information sent during the login API call.

An information disclosure vulnerability exists in the way Rome SDK handles server SSL/TLS certificate validation, aka 'Rome SDK Information Disclosure Vulnerability'.

The 105 BANK app 1.0 and 1.1 for Android and 1.0 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Photopt for Android before 2.0.1 does not verify SSL certificates.

Jetstar App for iOS before 3.0.0 does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Kintone mobile for Android 1.0.0 through 1.0.5 does not verify SSL server certificates.

The Great Southern Bank Great Southern Mobile Banking app before 4.0.4 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.