Bluetooth-Attacks-CVE-2025-27840

本稿では、攻撃者がモジュールアップデートを介して隠された脆弱性リストを導入し、ESP32デバイスを危険にさらし、秘密鍵への不正アクセスを取得する方法について説明します。これにより、このマイクロコントローラを使用する数十億のデバイスが影響を受けます。主要な問題の一つは、ESP32アーキテクチャで発見されたCVE-2025-27840脆弱性です。ビットコインネットワークのセキュリティを確保するために、以下の脆弱性を特定しました。関数hasinvalidprivkeyにおける下限チェック欠如による無効な秘密鍵の使用可能性、関数electrumsighashにおけるBIP-137非互換性によるト...

sslWeakness

sslWeakness 弱いPRNGを示すサンプルスクリプト、CVE-2008-0166...

CVE-2024-29868

CVE-2024-29868: 回復トークン生成における暗号学的に弱いPRNGの使用 このリポジトリには、Apache StreamPipes v0.69.0 から 0.93.0 に影響する CVE-2024-29868 に関する概念実証（Proof of Concept）が含まれています。 説明 : Apache StreamPipes のユーザー自己登録およびパスワード回復メカニズムにおける、暗号学的に弱い擬似乱数生成器（PRNG）の使用による脆弱性です。これにより、攻撃者は合理的な時間内に回復トークンを推測し、攻撃対象ユーザーのアカウントを乗っ取ることが可能になります。...

Spring Boot: Spring Boot: Weak pseudo-random number generation can lead to information disclosure.

A flaw was found in Spring Boot. The $random.value property source utilizes a weak pseudo-random number generator PRNG, meaning the values it produces are not sufficiently random for use as cryptographic secrets. An attacker could potentially predict these values, which may lead to information...

CVE-2026-94107: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

NivoCart through 2.4.0 contains a predictable password reset token vulnerability in the forgotten.php endpoint that generates recovery codes using substrmd5mtrand, 0, 10. Attackers who know an administrator's email address can request a password reset and predict the token to gain administrative...

CVE-2026-93868 Cotonti through 1.0.0 Predictable Password Recovery Token via Weak PRNG

Cotonti through 1.0.0 derives password recovery validation tokens from md5microtime in users.passrecover.php, creating a predictable token space of approximately one million values per second. Unauthenticated attackers can read the server Date header, precompute candidate tokens within a narrow...

CVE-2026-93868 Cotonti through 1.0.0 Predictable Password Recovery Token via Weak PRNG

Cotonti through 1.0.0 derives password recovery validation tokens from md5microtime in users.passrecover.php, creating a predictable token space of approximately one million values per second. Unauthenticated attackers can read the server Date header, precompute candidate tokens within a narrow...

CVE-2026-93868 Cotonti through 1.0.0 Predictable Password Recovery Token via Weak PRNG

Cotonti through 1.0.0 derives password recovery validation tokens from md5microtime in users.passrecover.php, creating a predictable token space of approximately one million values per second. Unauthenticated attackers can read the server Date header, precompute candidate tokens within a narrow...

CVE-2026-71851

A flaw was found in crypto-js. The CryptoJS.lib.WordArray.random function, used for generating cryptographic secrets, employs a weak pseudorandom number generator instead of a cryptographically secure source. This significantly reduces the randomness of generated values, such as those used for...

CVE-2026-93868: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Cotonti through 1.0.0 derives password recovery validation tokens from md5microtime in users.passrecover.php, creating a predictable token space of approximately one million values per second. Unauthenticated attackers can read the server Date header, precompute candidate tokens within a narrow...

CVE-2026-92913

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 uses a cryptographically weak pseudo-random number generator when creating account activation / login pairing codes. getRandomCode in objects/functions.php derives the code entirely from uniqid sprintf'%08x%05x', seconds, microseconds...

CVE-2026-92913 AVideo Weak PRNG Activation Code Authentication Bypass

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 uses a cryptographically weak pseudo-random number generator when creating account activation / login pairing codes. getRandomCode in objects/functions.php derives the code entirely from uniqid sprintf'%08x%05x', seconds, microseconds...

CVE-2026-92913 AVideo Weak PRNG Activation Code Authentication Bypass

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 uses a cryptographically weak pseudo-random number generator when creating account activation / login pairing codes. getRandomCode in objects/functions.php derives the code entirely from uniqid sprintf'%08x%05x', seconds, microseconds...

CVE-2026-92913

AVideo (through commit c3edcc274c389816d434acadac07ee78eaf330c1) uses a cryptographically weak PRNG in getRandomCode() (objects/functions.php), deriving account activation/login pairing codes from uniqid() with a single non-CSPRNG rand() character as padding, reducing the code space to ~2^25 valu...

EUVD-2026-81435

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 uses a cryptographically weak pseudo-random number generator when creating account activation / login pairing codes. getRandomCode in objects/functions.php derives the code entirely from uniqid sprintf'%08x%05x', seconds, microseconds...

CVE-2026-92912

AVideo (through commit c3edcc274c389816d434acadac07ee78eaf330c1) uses cryptographically weak uniqid() values for RTMP publish keys in its LiveTransmition module. This reduces key entropy to approximately one million possibilities per creation second, allowing an attacker who knows the channel cre...

CVE-2026-92912 AVideo Cryptographically Weak PRNG via uniqid Stream Key

AVideo through c3edcc274c389816d434acadac07ee78eaf330c1 uses cryptographically weak uniqid values for RTMP publish keys in LiveTransmition, reducing key entropy to approximately one million possibilities per creation second. Attackers who know the channel creation time can brute-force the...

CVE-2026-92912 AVideo Cryptographically Weak PRNG via uniqid Stream Key

AVideo through c3edcc274c389816d434acadac07ee78eaf330c1 uses cryptographically weak uniqid values for RTMP publish keys in LiveTransmition, reducing key entropy to approximately one million possibilities per creation second. Attackers who know the channel creation time can brute-force the...

CVE-2026-92749: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

SafeLine through 9.4.1 derives the management console session-signing secret from a time-seeded math/rand generator, allowing attackers to reconstruct the key offline. Unauthenticated remote attackers who can bound the install timestamp can regenerate the secret and forge valid administrator...

CVE-2026-92298: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

EspoCRM through 10.0.8 uses PHP's rand function to generate tokens for lead-capture opt-in, event invitation, and campaign URLs instead of a cryptographically secure generator. Remote unauthenticated attackers can guess these roughly 31-bit tokens to confirm opt-ins, accept or decline event...