description: Versions of the package jsrsasign before 11.0.0 are vulnerable to Observable Discrepancy via the RSA PKCS1.5 or RSAOAEP decryption process. An attacker can decrypt ciphertexts by exploiting the Marvin security flaw. Exploiting this vulnerability requires the attacker to have access to a large number of ciphertexts encrypted with the same key.
Workaround
The vulnerability can be mitigated by finding and replacing RSA and RSAOAEP decryption with another crypto library.
problem types: Observable Discrepancy
affected:
{
product: jsrsasign
versions:
version: 0, lessThan: 11.0.0, status: affected, versionType: semver
vendor: n/a
}
{
product: org.webjars.npm:jsrsasign
versions:
version: 0, lessThan: *, status: affected, versionType: semver
vendor: n/a
}
{
product: org.webjars.bowergithub.kjur:jsrsasign
versions:
version: 0, lessThan: *, status: affected, versionType: semver
vendor: n/a
}
{
product: org.webjars.bower:jsrsasign
versions:
version: 0, lessThan: *, status: affected, versionType: semver
vendor: n/a
}
metrics:
cvssV3_1: [
version: 3.1
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: CHANGED
confidentialityImpact: HIGH
integrityImpact: NONE
availabilityImpact: LOW
baseScore: 7.5
baseSeverity: HIGH
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:L/E:P
]