Predictable Seed in Pseudo-Random Number Generator (PRNG)
CWE-337
A Pseudo-Random Number Generator (PRNG) is initialized from a predictable seed, such as the process ID or system time.
We track 10 vulnerabilities of this type. 100% are rated high or critical, and the average CVSS score is 8.3.
How this weakness is prevented
- Use non-predictable inputs for seed generation.
- Architecture and Design Requirements: Use products or modules that conform to FIPS 140-2 to avoid obvious entropy problems, or use the more recent FIPS 140-3 if possible.
- Implementation: Use a PRNG that periodically re-seeds itself using input from high-quality sources, such as hardware devices with high entropy. However, do not re-seed too frequently, or else the entropy source might block.
Latest Predictable Seed in Pseudo-Random Number Generator (PRNG) vulnerabilities
- 8.3 High severity
xdg-desktop-portal: Use of Insufficiently Random Values
XDG Desktop Portal is a desktop integration portal. Prior to version 1.22.1, malicious sandboxed applications can use the FileTransfer.RetrieveFiles method to redirect drag-and-drop and copy-paste data targeted at other applications to itself. Some portals gen
- 7.7 High severity
Router: Predictable Seed in Pseudo-Random Number Generator (PRNG)
A predictable seed in the pseudo-random number generator (PRNG) in the IFTTT pairing token generation of the ASUS RT-BE57 router allows an unauthenticated nearby user to derive the pairing token and read or modify router settings via observed values from an ad
- 7.5 High severity
coredns: Predictable Seed in Pseudo-Random Number Generator (PRNG)
CoreDNS is a DNS server that chains plugins. Prior to version 1.14.2, a denial of service vulnerability exists in CoreDNS's loop detection plugin that allows an attacker to crash the DNS server by sending specially crafted DNS queries. The vulnerability stems
- 7.5 High severity
pearweb: Predictable Seed in Pseudo-Random Number Generator (PRNG)
PEAR is a framework and distribution system for reusable PHP components. Prior to version 1.33.0, predictable verification hashes may allow attackers to guess verification tokens and potentially verify election account requests without authorization. This issu
- 8.3 High severity
CLICK PLUS C0-0x CPU firmware: Predictable Seed in Pseudo-Random Number Generator (PRNG)
A predictable seed in pseudo-random number generator vulnerability has been discovered in firmware version 3.60 of the Click Plus PLC. The vulnerability relies on the fact that the software implements a predictable seed for its pseudo-random number generator,
- 8.7 High severity
Cloud Connect Advanced: Predictable Seed in Pseudo-Random Number Generator (PRNG)
Tigo Energy's CCA device is vulnerable to insecure session ID generation in their remote API. The session IDs are generated using a predictable method based on the current timestamp, allowing attackers to recreate valid session IDs. When combined with the abil
- 8.0 High severity
Juju: Use of Insufficiently Random Values
JUJU_CONTEXT_ID is a predictable authentication secret. On a Juju machine (non-Kubernetes) or Juju charm container (on Kubernetes), an unprivileged user in the same network namespace can connect to an abstract domain socket and guess the JUJU_CONTEXT_ID value.
- 7.8 High severity
Budgie Extras: Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)
Temporary data passed between application components by Budgie Extras Dropby applet could potentially be viewed or manipulated. The data is stored in a location that is accessible to any user who has local access to the system. Attackers may pre-create and con
- 9.1 Critical severity
MELSEC iQ-F Series FX5U-32MT/ES: Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)
Predictable Seed in Pseudo-Random Number Generator (PRNG) vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-xMy/z (x=32,64,80, y=T,R, z=ES,DS,ESS,DSS) with serial number 17X**** or later, and versions 1.280 and prior, Mitsubishi Electric
- 9.8 Critical severity
PowerScale OneFS: Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)
Dell PowerScale OneFS, versions 8.2.x-9.3.x, contain a predictable seed in pseudo-random number generator. A remote unauthenticated attacker could potentially exploit this vulnerability, leading to an account compromise.