Weakness (CWE)
CWE-757: Algorithm Downgrade
A protocol or its implementation supports interaction between multiple actors and allows those actors to negotiate which algorithm should be used in a protection mechanism such as encryption or authentication, but it does not select the strongest algorithm that is available to both parties.
Source: MITRE CWE-757
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Medium 5.3
In Modem, there is a possible information disclosure due to side channel information disclosure. This could lead to rem…
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Medium 5.3
RSA PKCS#1 v1.5 padding oracle via legacy envelope key format downgrade in Amazon S3 Encryption Client for .NET
A remote user who can read encrypted objects in the S3 bucket can force a padding downgrade by altering the padding scheme recorded in an object's metadata to legacy PKCS#1 v1.5. Since this padding scheme is susceptible to the well-known Bleichenbacher attack…
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Medium 5.3
FreeRDP 3.0.0 before 3.32.0 Security Protocol Downgrade via Negotiation Response
The FreeRDP client 3.0.0 before 3.32.0 does not check a server-selected PROTOCOL_RDSTLS or PROTOCOL_HYBRID_EX against its enabled protocol set in nego_process_negotiation_response(), allowing a security protocol downgrade. A malicious server or man-in-the-mid…
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Medium 6.6
SMB minimum protocol dialect defaults to SMB1
Unless the application explicitly raises smbMinVersion, the jCIFS client will negotiate down to SMB1/CIFS, which lacks mandatory signing/encryption and is vulnerable to NTLM relay and content-tampering MITM. Spring Integration 7.1.0 Spring Integration 7.0.0 -…
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Medium 5.9
IBM i is Affected by Algorithm Downgrade in Transport Layer Security []
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to send a specifically crafted message and downgrade the Transport Layer Security (TLS) protocol to a version disabled in the server configuration.
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Medium 6.3
Symfony: Mailomat Mailer Webhook Parser Reads the HMAC Algorithm from the Request: Signature Algorithm Downgrade
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 7.4.13 and 8.0.13, MailomatRequestParser::validateSignature() parsed X-MOM-Webhook-Signature as algo=signature and passed the request-selected algorithm…
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Medium 5.3
net: TLS 1.2 connections allowed on TLS 1.3 sockets
Zephyr sockets created with `IPPROTO_TLS_1_3` can still negotiate a TLS 1.2 connection when both TLS versions are enabled in Kconfig, because the socket-level protocol selection is not propagated to mbedTLS (e.g. via `mbedtls_ssl_conf_min_tls_version`). The C…
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Medium 4.7
Key commitment policy bypass via shared key cache in AWS Encryption SDK for Python
Cryptographic algorithm downgrade in the caching layer of Amazon AWS Encryption SDK for Python before version 3.3.1 and before version 4.0.5 might allow an authenticated local threat actor to bypass key commitment policy enforcement via a shared key cache, re…
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Medium 6.5
OpenSSL TLS 1.3 server may choose unexpected key agreement group
Issue summary: An OpenSSL TLS 1.3 server may fail to negotiate the expected preferred key exchange group when its key exchange group configuration includes the default by using the 'DEFAULT' keyword. Impact summary: A less preferred key exchange may be used e…
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Medium 4.8
Dell NetWorker, versions 19.12.0.1 and prior, contains a Selection of Less-Secure Algorithm During Negotiation ('Algori…
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Medium 6.5
In modem, there is a possible selection of less-secure algorithm during the VoWiFi IKE due to a missing DH downgrade ch…
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Medium 6.5
Quarkus-core: tls protocol configured with quarkus.http.ssl.protocols is not enforced, client can enforce weaker supported tls protocol
A vulnerability was found in quarkus-core. This vulnerability occurs because the TLS protocol configured with quarkus.http.ssl.protocols is not enforced, and the client can force the selection of the weaker supported TLS protocol.
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Medium 6.5
Dell EMC Streaming Data Platform, versions prior to 1.3 contain an SSL Strip Vulnerability in the User Interface (UI). …
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Medium 6.5
Philips Clinical Collaboration Platform Algorithm Downgrade
Philips Clinical Collaboration Platform, Versions 12.2.1 and prior, does not properly control the allocation and maintenance of a limited resource, thereby enabling an attacker to influence the amount of resources consumed, eventually leading to the exhaustio…
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Medium 5.4CVE-2020-10135 Public exploit
Bluetooth devices supporting BR/EDR v5.2 and earlier are vulnerable to impersonation attacks
Legacy pairing and secure-connections pairing authentication in Bluetooth BR/EDR Core Specification v5.2 and earlier may allow an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent att…
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Medium 6.9
downgrade of effective Strict Transport Security (STS) policy in postfix-mta-sts-resolver
In postfix-mta-sts-resolver before 0.5.1, All users can receive incorrect response from daemon under rare conditions, rendering downgrade of effective STS policy.
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Medium 6.5
eDirectory LDAP peer certificate validation issue
In Novell eDirectory before 9.0.3.1 the LDAP interface was not strictly enforcing cipher restrictions allowing weaker ciphers to be used during SSL BIND operations.