Verification with an asymmetric key of a token signed with a symmetric key #69
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…c key There is a vulnerability in this module when the verification part is expecting a token digitally signed with an asymetric key (RS/ES family) of algorithms but instead the attacker send a token digitally signed with a symmetric algorithm (HS* family). The issue is because this library has the very same signature to verify both type of tokens (parameter: `secretOrPublicKey`). This change adds a new parameter to the verify called `algorithms`. This can be used to specify a list of supported algorithms, but the default value depends on the secret used: if the secretOrPublicKey contains the string `BEGIN CERTIFICATE` the default is `[ 'RS256','RS384','RS512','ES256','ES384','ES512' ]` otherwise is `[ 'HS256','HS384','HS512' ]`.
jfromaniello
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Mar 16, 2015
Verification with an asymmetric key of a token signed with a symmetric key
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@jfromaniello Thanks for fixing this :) |
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There is a vulnerability in this module when the verification part is expecting a token digitally signed with an asymetric key (RS/ES family) of algorithms but instead the attacker send a token digitally signed with a symmetric algorithm (HS* family).
The issue is because this library has the very same signature to verify both type of tokens (parameter:
secretOrPublicKey).This change adds a new parameter to the verify called
algorithms. This can be used to specify a list of supported algorithms, but the default value depends on the secret used: if the secretOrPublicKey contains the stringBEGIN CERTIFICATEthe default is:otherwise is