fileinfo emits non-printable characters for "Subject name" of a digital certificate

[s3rvac]

In the text mode, fileinfo emits non-printable characters for Subject name of a digital certificate of the attached PE file.

Input

Run

$ retdec-fileinfo --verbose FILE

where FILE is:

• 03EA764EAD2C27B0A98C48A18D4CC8E831F3D9A7BF62A471C2D57EF81183CF80

Output

The ordinal value of the two non-printable characters is 0 (i.e. they are null bytes).

Expected output

Certificate #0
Subject name        : Microsoft Windows 20\x00\x00 Publisher
Subject organization: Microsoft Corporation
Subject             : /C=US/ST=Washington/L=Redmond/O=Microsoft Corporation/OU=Copyright (c) 20\x00\x00 Microsoft Corp./CN=Microsoft Windows 20\x00\x00 Publisher
Issuer name         : Microsoft Windows Verification Intermediate PCA

That is, Subject name should be properly escaped, just like Subject.

Notes

• What is interesting is that in the JSON mode, the characters get properly escaped:

  $ retdec-fileinfo --verbose --json FILE
  ...
          "subject" :
          {
              "commonName" : "Microsoft Windows 20\\x00\\x00 Publisher",
              ...
          }
  ...
  

  There seems to be an inconsistency between the escaping in the text and JSON modes.

Configuration

• Commit: a24aabb (current master)
• 64b Arch Linux, GCC 7.3.0, Debug build of RetDec

[metthal]

Fixed in 0a70ec5.