漏洞信息
尽管我们使用了先进的大模型技术,但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性,但请您根据实际情况进行核实和判断。
Vulnerability Title
VeraCryp: wolfCrypt backend bypasses VeraCrypt PBKDF2 iteration count (non-default WOLFCRYPT=1 builds)
Vulnerability Description
VeraCrypt provides disk encryption with strong security based on TrueCrypt. Prior to 1.26.29, non-default builds created with WOLFCRYPT=1 and WOLFCRYPT_BACKEND route SHA-256 and SHA-512 volume-header key derivation through derive_key_sha256 and derive_key_sha512 in src/Crypto/wolfCrypt.c, where the configured iterations value is discarded and wc_HKDF is used instead of PBKDF2-HMAC. Changing the PIM or iteration count therefore does not increase derivation cost, allowing an attacker with an affected container, disk image, or volume header to perform substantially cheaper offline password guesses. Official precompiled VeraCrypt binaries and normal distribution packages use the standard PBKDF2 backend and are not affected. Volumes created by an affected WOLFCRYPT=1 build require backup and recreation because corrected builds derive different keys. This issue is fixed in version 1.26.29.
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Vulnerability Type
使用具有不充分计算复杂性的口令哈希
Vulnerability Title
VeraCrypt 加密问题漏洞
Vulnerability Description
VeraCrypt是veracrypt组织的一款磁盘加密软件。 VeraCrypt 1.26.29之前版本存在加密问题漏洞,该漏洞源于在WOLFCRYPT=1和WOLFCRYPT_BACKEND非默认构建中,SHA-256和SHA-512卷头密钥派生时配置的迭代次数被丢弃,使用wc_HKDF代替PBKDF2-HMAC,导致更改PIM或迭代次数不会增加派生成本,攻击者可对受影响的容器、磁盘映像或卷头进行更廉价的离线密码猜测。
CVSS Information
N/A
Vulnerability Type
N/A