Insecure RSA Decryption (Bleichenbacher Timing Vulnerability)

2020-10-2801:01:52

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

JSON

cryptography is using insecure RSA Decryption and is vulnerable to Bleichenbacher Timing Vulnerability. When RSA decryption is used in online scenarios, it does not use RSA PKCS#1v1.5 decryption with constant time, allowing an attacker to passively record traffic and later decrypt it.

CPENameOperatorVersion
cryptographyle1.9
cryptographyle0.9.3
cryptographyle3.1.1
cryptographyle1.5.3
python-cryptography:bioniceq2.1.4-1ubuntu1.3
python-cryptography:bioniceq2.1.4-1ubuntu1.1
python-cryptography:xenialeq1.2.3-1ubuntu0.2
py3-cryptography:edgeeq2.8-r1
py3-cryptography:edgeeq2.9.2-r0
py3-cryptography:edgeeq2.9-r0

Name	Operator	Version
cryptography	le	1.9
cryptography	le	0.9.3
cryptography	le	3.1.1
cryptography	le	1.5.3
python-cryptography:bionic	eq	2.1.4-1ubuntu1.3
python-cryptography:bionic	eq	2.1.4-1ubuntu1.1
python-cryptography:xenial	eq	1.2.3-1ubuntu0.2
py3-cryptography:edge	eq	2.8-r1
py3-cryptography:edge	eq	2.9.2-r0
py3-cryptography:edge	eq	2.9-r0