RFC 3447 and RFC 8017 allow for optional DigestAlgorithmNULL parameters
for sha* algorithms and require NULL paramters for md2 and md5
algorithms.
1.3.0 - 2022-03-17
Security
Three RSA PKCS#1 v1.5 signature verification issues were reported by Moosa
Yahyazadeh (moosa-yahyazadeh@uiowa.edu).
HIGH: Leniency in checking digestAlgorithm structure can lead to
signature forgery.
The code is lenient in checking the digest algorithm structure. This can
allow a crafted structure that steals padding bytes and uses unchecked
portion of the PKCS#1 encoded message to forge a signature when a low
public exponent is being used. For more information, please see
"Bleichenbacher's RSA signature forgery based on implementation
error"
by Hal Finney.
HIGH: Failing to check tailing garbage bytes can lead to signature
forgery.
The code does not check for tailing garbage bytes after decoding a
DigestInfo ASN.1 structure. This can allow padding bytes to be removed
and garbage data added to forge a signature when a low public exponent is
being used. For more information, please see "Bleichenbacher's RSA
signature forgery based on implementation
error"
by Hal Finney.
DigestInfo is not properly checked for proper ASN.1 structure. This can
lead to successful verification with signatures that contain invalid
structures but a valid digest.
[asn1] Add fallback to pretty print invalid UTF8 data.
[asn1] fromDer is now more strict and will default to ensuring all input
bytes are parsed or throw an error. A new option parseAllBytes can disable
this behavior.
NOTE: The previous behavior is being changed since it can lead to
security issues with crafted inputs. It is possible that code doing custom
DER parsing may need to adapt to this new behavior and optional flag.
[rsa] Add and use a validator to check for proper structure of parsed ASN.1
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lilfolr
commented
2 years ago
Bumps node-forge from 1.2.1 to 1.3.1.
Changelog
Sourced from node-forge's changelog.
... (truncated)
Commits
a0a4a42Release 1.3.1.a33830fUpdate changelog.740954dAllow optional DigestAlgorithm parameters.56f4316Allow DigestInfo.DigestAlgorith.parameters to be optionalcbf0bd5Start 1.3.1-0.6c5b901Release 1.3.0.0f3972aUpdate changelog.dc77b39Fix error checking.bb822c0Add advisory links.d4395feUpdate changelog.Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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