| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| Electronic Code Book (ECB) mode in VTun 2.0 through 2.5 uses a weak encryption algorithm that produces the same ciphertext from the same plaintext blocks, which could allow remote attackers to gain sensitive information. |
| WebEOC before 6.0.2 uses a weak encryption scheme for passwords, which makes it easier for attackers to crack passwords. |
| Pathways Homecare 6.5 uses weak encryption for user names and passwords, which allows local users to gain privileges by recovering the passwords from the pwhc.ini file. |
| Alt-N Technologies Mdaemon 5.0 through 5.0.6 uses a weak encryption algorithm to store user passwords, which allows local users to crack passwords. |
| NewsReactor 1.0 uses a weak encryption scheme, which could allow local users to decrypt the passwords and gain access to other users' newsgroup accounts. |
| EarlyImpact ProductCart uses a weak encryption scheme to encrypt passwords, which allows remote attackers to obtain the password via a chosen plaintext attack. |
| TeeKai Tracking Online 1.0 uses weak encryption of web usage statistics in data/userlog/log.txt, which allows remote attackers to identify IP's visiting the site by dividing each octet by the MD5 hash of '20'. |
| Microsoft SQL Server 6.0 through 2000, with SQL Authentication enabled, uses weak password encryption (XOR), which allows remote attackers to sniff and decrypt the password. |
| Videsh Sanchar Nigam Limited (VSNL) Integrated Dialer Software 1.2.000, when the "Save Password" option is used, stores the password with a weak encryption scheme (one-to-one mapping) in a registry key, which allows local users to obtain and decrypt the password. |
| Spectrum Cash Receipting System before 6.504 uses weak cryptography (static substitution) in the PASSFILE password file, which makes it easier for local users to gain privileges by decrypting a password. |
| The default configuration on OpenSSL before 0.9.8 uses MD5 for creating message digests instead of a more cryptographically strong algorithm, which makes it easier for remote attackers to forge certificates with a valid certificate authority signature. |
| Click2Learn Ingenium Learning Management System 5.1 and 6.1 uses weak encryption for passwords (reversible algorithm), which allows attackers to obtain passwords. |
| Information from SSL-encrypted sessions via PKCS #1. |
| Sharp Zaurus PDA SL-5000D and SL-5500 uses a salt of "A0" to encrypt the screen-locking password as stored in the Security.conf file, which makes it easier for local users to guess the password via brute force methods. |
| Use of Hard-coded Cryptographic Key vulnerability in Apache OpenMeetings.
The remember-me cookie encryption key is set to default value in openmeetings.properties and not being auto-rotated. In case OM admin hasn't changed the default encryption key, an attacker who has stolen a cookie from a logged-in user can get full user credentials.
This issue affects Apache OpenMeetings: from 6.1.0 before 9.0.0.
Users are recommended to upgrade to version 9.0.0, which fixes the issue. |
| ### Impact
When this library is used to deserialize messagepack data from an untrusted source, there is a risk of a denial of service attack by an attacker that sends data contrived to produce hash collisions, leading to large CPU consumption disproportionate to the size of the data being deserialized.
This is similar to [a prior advisory](https://github.com/MessagePack-CSharp/MessagePack-CSharp/security/advisories/GHSA-7q36-4xx7-xcxf), which provided an inadequate fix for the hash collision part of the vulnerability.
### Patches
The following steps are required to mitigate this risk.
1. Upgrade to a version of the library where a fix is available.
1. Review the steps in [this previous advisory](https://github.com/MessagePack-CSharp/MessagePack-CSharp/security/advisories/GHSA-7q36-4xx7-xcxf) to ensure you have your application configured for untrusted data.
### Workarounds
If upgrading MessagePack to a patched version is not an option for you, you may apply a manual workaround as follows:
1. Declare a class that derives from `MessagePackSecurity`.
2. Override the `GetHashCollisionResistantEqualityComparer<T>` method to provide a collision-resistant hash function of your own and avoid calling `base.GetHashCollisionResistantEqualityComparer<T>()`.
3. Configure a `MessagePackSerializerOptions` with an instance of your derived type by calling `WithSecurity` on an existing options object.
4. Use your custom options object for all deserialization operations. This may be by setting the `MessagePackSerializer.DefaultOptions` static property, if you call methods that rely on this default property, and/or by passing in the options object explicitly to any `Deserialize` method.
### References
- Learn more about best security practices when reading untrusted data with [MessagePack 1.x](https://github.com/MessagePack-CSharp/MessagePack-CSharp/tree/v1.x#security) or [MessagePack 2.x](https://github.com/MessagePack-CSharp/MessagePack-CSharp#security).
- The .NET team's [discussion on hash collision vulnerabilities of their `HashCode` struct](https://github.com/GrabYourPitchforks/runtime/blob/threat_models/docs/design/security/System.HashCode.md).
### For more information
If you have any questions or comments about this advisory:
* [Start a public discussion](https://github.com/MessagePack-CSharp/MessagePack-CSharp/discussions)
* [Email us privately](mailto:andrewarnott@live.com) |
| The device uses a weak hashing alghorithm to create the password hash. Hence, a matching password can be easily calculated by an attacker. This impacts the security and the integrity of the device. |
| This vulnerability exists in USB Pratirodh due to the usage of a weaker cryptographic algorithm (hash) SHA1 in user login component. A local attacker with administrative privileges could exploit this vulnerability to obtain the password of USB Pratirodh on the targeted system.
Successful exploitation of this vulnerability could allow the attacker to take control of the application and modify the access control of registered users or devices on the targeted system.
|
| A vulnerability was found in Netis WF-2404 1.1.124EN. It has been rated as problematic. This issue affects some unknown processing of the file /еtc/passwd. The manipulation leads to use of weak hash. It is possible to launch the attack on the physical device. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way. |
| The devices are vulnerable to an authentication bypass due to flaws in the authorization mechanism. An unauthenticated remote attacker could exploit this weakness by performing brute-force attacks to guess valid credentials or by using MD5 collision techniques to forge authentication hashes, potentially compromising the device. |
