| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| The KRandom::random function in KDE Paste Applet after 4.10.5 in kdeplasma-addons uses the GNU C Library rand function's linear congruential generator, which makes it easier for context-dependent attackers to defeat cryptographic protection mechanisms by predicting the generator output. |
| python-keystoneclient version 0.2.3 to 0.2.5 has middleware memcache encryption bypass |
| Z-Wave devices from Sierra Designs (circa 2013) and Silicon Labs (using S0 security) may use a known, shared network key of all zeros, allowing an attacker within radio range to spoof Z-Wave traffic. |
| In crypt.c of remote-login-service, the cryptographic algorithm used to cache usernames and passwords is insecure. An attacker could use this vulnerability to recover usernames and passwords from the file. This issue affects version 1.0.0-0ubuntu3 and prior versions. |
| Squirrelmail 4.0 uses the outdated MD5 hash algorithm for passwords. |
| A Security Bypass vulnerability exists in PolarSSL 0.99pre4 through 1.1.1 due to a weak encryption error when generating Diffie-Hellman values and RSA keys. |
| The OpenSSL extension of Ruby (Git trunk) versions after 2011-09-01 up to 2011-11-03 always generated an exponent value of '1' to be used for private RSA key generation. A remote attacker could use this flaw to bypass or corrupt integrity of services, depending on strong private RSA keys generation mechanism. |
| Joomla! core 1.7.1 allows information disclosure due to weak encryption |
| The implementations of PKCS#1 v1.5 key transport mechanism for XMLEncryption in JBossWS and Apache WSS4J before 1.6.5 is susceptible to a Bleichenbacher attack. |
| TYPO3 before 4.3.4 and 4.4.x before 4.4.1 contains insecure randomness during generation of a hash with the "forgot password" function. |
| The DVC from TRCore encrypts files using a hardcoded key. Attackers can use this key to decrypt the files and restore the original content. |
| IBM Sterling Secure Proxy 6.0.0.0, 6.0.0.1, 6.0.0.2, 6.0.0.3, and 6.1.0.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot dot" sequences (/.../) to view arbitrary files on the system. |
| A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 3). The affected application uses hard-coded cryptographic key material to obfuscate configuration files. This could allow an attacker to learn that cryptographic key material through reverse engineering of the application binary and decrypt arbitrary backup files. |
| Nokia SR OS bof.cfg file encryption is vulnerable to a brute force attack. This weakness allows an attacker in possession of the encrypted file to decrypt the bof.cfg file and obtain the BOF configuration content. |
| A vulnerability was found in Topdata Inner Rep Plus WebServer 2.01. It has been rated as problematic. Affected by this issue is some unknown functionality of the file td.js.gz. The manipulation leads to risky cryptographic algorithm. The attack may be launched remotely. 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. |
| An issue was discovered on certain GL-iNet devices, including MT6000, MT3000, MT2500, AXT1800, and AX1800 4.6.2. By intercepting an HTTP request and changing the filename property in the download interface, any file on the device can be deleted. |
| Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to version 7.0.7, missing initialization of the random seed for "thash" leads to byte-range tracking having predictable hash table behavior. This can lead to an attacker forcing lots of data into a single hash bucket, leading to severe performance degradation. This issue has been addressed in 7.0.7. |
| Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to version 7.0.7, missing initialization of the random seed for "thash" leads to datasets having predictable hash table behavior. This can lead to dataset file loading to use excessive time to load, as well as runtime performance issues during traffic handling. This issue has been addressed in 7.0.7. As a workaround, avoid loading datasets from untrusted sources. Avoid dataset rules that track traffic in rules. |
| ### 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) |
| Authenticator is a browser extension that generates two-step verification codes. In versions 7.0.0 and below, encryption keys for user data were stored encrypted at-rest using only AES-256 and the EVP_BytesToKey KDF. Therefore, attackers with a copy of a user's data are able to brute-force the user's encryption key. Users on version 8.0.0 and above are automatically migrated away from the weak encoding on first login. Users should destroy encrypted backups made with versions prior to 8.0.0. |
