oss-sec mailing list archives
kwallet crypto misuse
From: Florian Weimer <fweimer () redhat com>
Date: Thu, 02 Jan 2014 09:15:15 +0100
I just noticed this is now public: <http://gaganpreet.in/blog/2013/07/24/kwallet-security-analysis/>Short summary: kwallet uses Blowfish to encrypt its password store, and despite an attempt at implementing CBC mode (in a file called cbc.cc no less), it's actually ECB mode. UTF-16 encoding combined with Blowfish's 64 bit block size means there are just four password characters per block. Encryption is convergent as well. This may enable recovery of passwords through codebook attacks.
Should we treat this as a minor vulnerability? -- Florian Weimer / Red Hat Product Security Team
Current thread:
- kwallet crypto misuse Florian Weimer (Jan 02)
- Re: kwallet crypto misuse cve-assign (Jan 02)
- Re: Re: kwallet crypto misuse Daniel Kahn Gillmor (Jan 02)
- Re: kwallet crypto misuse cve-assign (Jan 02)
- Re: Re: kwallet crypto misuse Kurt Seifried (Jan 02)
- Re: Re: kwallet crypto misuse Daniel Kahn Gillmor (Jan 02)
- Re: Re: kwallet crypto misuse Michael Samuel (Jan 02)
- Re: kwallet crypto misuse cve-assign (Jan 02)
- Re: kwallet crypto misuse gremlin (Jan 02)
- Re: kwallet crypto misuse Daniel Kahn Gillmor (Jan 03)
- Re: kwallet crypto misuse Simon McVittie (Jan 03)
- Re: kwallet crypto misuse Daniel Kahn Gillmor (Jan 03)
- Re: kwallet crypto misuse cve-assign (Jan 03)
- Re: kwallet crypto misuse Daniel Kahn Gillmor (Jan 03)