Nimbus JOSE+JWT Security Bypass Vulnerability

Nimbus JOSE+JWT is an open source Java library . Nimbus JOSE+JWT fails to perform integer overflow detection, allowing remote attackers to exploit vulnerabilities to perform HMAC bypass attacks by sniffing AAD and ciphertext...

Integer overflow

In Nimbus JOSE+JWT before 4.39, there is no integer-overflow check when converting length values from bytes to bits, which allows attackers to conduct HMAC bypass attacks by shifting Additional Authenticated Data AAD and ciphertext so that different plaintext is obtained for the same HMAC...

CVE-2017-12972

In Nimbus JOSE+JWT before 4.39, there is no integer-overflow check when converting length values from bytes to bits, which allows attackers to conduct HMAC bypass attacks by shifting Additional Authenticated Data AAD and ciphertext so that different plaintext is obtained for the same HMAC...

Design/Logic Flaw

Nimbus JOSE+JWT before 4.39 proceeds improperly after detection of an invalid HMAC in authenticated AES-CBC decryption, which allows attackers to conduct a padding oracle attack...

CVE-2017-12972

In Nimbus JOSE+JWT before 4.39, there is no integer-overflow check when converting length values from bytes to bits, which allows attackers to conduct HMAC bypass attacks by shifting Additional Authenticated Data AAD and ciphertext so that different plaintext is obtained for the same HMAC...

CVE-2017-12972

CVE-2017-12972 : Nimbus JOSE+JWT before 4.39 has no integer-overflow check when converting length values from bytes to bits, enabling a remote attacker to perform a HMAC bypass by shifting AAD and ciphertext so different plaintext yields the same HMAC. Public records show this vulnerability discu...

CVE-2017-12972

In Nimbus JOSE+JWT before 4.39, there is no integer-overflow check when converting length values from bytes to bits, which allows attackers to conduct HMAC bypass attacks by shifting Additional Authenticated Data AAD and ciphertext so that different plaintext is obtained for the same HMAC...

CVE-2017-12973

Nimbus JOSE+JWT before 4.39 proceeds improperly after detection of an invalid HMAC in authenticated AES-CBC decryption, which allows attackers to conduct a padding oracle attack...

CVE-2017-12973

Nimbus JOSE+JWT prior to 4.39 proceeds after detecting an invalid HMAC in authenticated AES-CBC decryption, enabling a padding oracle attack. Affected: Nimbus JOSE+JWT library (Connect2id). Risk: padding oracle could leak data or enable exploitation. Remediation: upgrade to version 4.39 or later ...

Zomato: Length extension attack leading to HTML injection

At the profile setting page where I can set my personal website I found this url: https://www.zomato.com/redirect?u=xxx&t=yyy Where xxx is the url that we can control and yyy is the hash. Through out blackbox testing I find out that if md5somescret + url == t then the redirect is allowed. This is...

CVE-2017-7524

tpm2-tools versions before 1.1.1 are vulnerable to a password leak due to transmitting password in plaintext from client to server when generating HMAC...

UBUNTU-CVE-2017-7524

tpm2-tools versions before 1.1.1 are vulnerable to a password leak due to transmitting password in plaintext from client to server when generating HMAC...

Design/Logic Flaw

tpm2-tools versions before 1.1.1 are vulnerable to a password leak due to transmitting password in plaintext from client to server when generating HMAC...

CVE-2017-7524

tpm2-tools versions before 1.1.1 are vulnerable to a password leak due to transmitting password in plaintext from client to server when generating HMAC...

CVE-2017-7524

tpm2-tools versions before 1.1.1 are vulnerable to a password leak due to transmitting password in plaintext from client to server when generating HMAC...

CVE-2017-7524

tpm2-tools versions before 1.1.1 are vulnerable to a password leak due to transmitting password in plaintext from client to server when generating HMAC...

CVE-2017-7524

CVE-2017-7524 affects tpm2-tools before 1.1.1, where a password is transmitted in plaintext from client to server when generating an HMAC, enabling a potential password leak. Publicly documented details across connected sources confirm the affected component and root cause, with several advisorie...

ProtonMail Launches Free VPN Service

Encrypted email service ProtonMail announced today it was launching a free VPN service called ProtonVPN. Developers said the move comes following one year of development and four months of beta testing by 10,000 ProtonMail community members. According to Proton Technologies AG, the company behind...

Yelp: Firefly's verify_access_token() function does a byte-by-byte comparison of HMAC values.

Dear Yelp bug bounty team, Summary --- Firefly is vulnerable to timing attacks, because the verifyaccesstoken function performs a byte-by-byte comparison, which terminates early when two characters do not match. Timing attacks are a type of side channel attack where one can discover valuable...

morty - Privacy aware web content sanitizer proxy as a service

Web content sanitizer proxy as a service. Morty rewrites web pages to exclude malicious HTML tags and attributes. It also replaces external resource references to prevent third party information leaks. The main goal of morty is to provide a result proxy for searx , but it can be used as a...