## Documents for signature

Code [sig001e]

No signature database was found. This likely indicates that a complete port of the security checking system has not been done for this system. It may also indicate an incorrect configuration of the security checking system.

Because the signature database does not exist, it will not be possible to perform the checks for altered binaries and installed security patches.

Code [sig002a]

The signature for the indicated file matches a signature obtained from a binary known to have been altered. This indicates that the system has been compromised. The system should be checked for other signs of intrusion and cleaned up. The indicated binary should be replaced from distribution media.

Code [sig003w]

The signature for the indicated file is recognized as the signature from a binary for which either a security patch exists, or a newer version of the security patch exists. The file is out of date and should be replaced with one from the indicated patch.

Code [sig004w]

No match was found for the signature of the indicated file. This indicates either a local modification has been performed, replacing the binary, or that the file has been altered by an intruder. If you are not aware of any local modifications, you should check this carefully.

Code [sig005e]

Something prevented the system from reading the indicated file. This should not occur if the security system is run from the root account on a non-MLS system.

Code [sig006w]

CERT Advisory CA-92:11

A vulnerability exists with regard to certain environment variables used in SunOS 4.x systems. These vulnerabilities can occur in other setuid executables than the ones checked here (including third party software). The following patches are available to fix Sun supplied software.

Sun Patch ID 100630 /bin/login, /bin/su, /usr/5bin/su (international)

Sun Patch ID 100631 /bin/login, /bin/su, /usr/5bin/su (domestic)

Sun Patch ID 100633 /bin/login, /bin/su, /usr/5bin/su (ARM)

Code [sig007a]

The signature for the indicated file matches a signature obtained from a binary known to have been altered. This indicates that the system has been compromised. The system should be checked for other signs of intrusion and cleaned up. The indicated binary should be replaced from distribution media.

Code [sig008w]

CERT Advisory CA-92:13

A vulnerability exists in the NIS system for SunOS 4.x systems which may allow NIS maps, including the passwd maps, to be obtained by any host. Sun Patch ID 100482 provides a fix for this.

Code [sig009w]

CERT Advisory CA-92:11

A vulnerability exists with regard to certain environment variables used in SunOS 4.x systems. These vulnerabilities can occur in other setuid executables than the ones checked here (including third party software). The following patch is available to fix Sun supplied software.

Sun Patch ID 100377 /usr/lib/sendmail, /usr/lib/sendmail.mx

Code [sig010w]

CERT Advisory CA-91:20

A vulnerability exists in the 'rdist' command which can be exploited to gain unauthorized privileges. This vulnerability exists in most versions of 'rdist' distributed before 1992. Sun Patch ID 100383 provides a fix for this.

Code [sig011w]

CERT Advisory CA-91:10a

A vulnerability exists in the print system (lpr, lpc, lpd, etc) on SunOS 4.x systems which can allow a user to delete files they do not own. A fix for this vulnerability is provided in Sun Patch ID 100305.

Code [sig012w]

CERT Advisory CA-91:09

A vulnerability exists in the rpc.mountd program which can allow any host to access NFS exported file systems. This occurs when the length of the host access list for an entry exceeds 256 characters. Sun Patch ID 100296 provides a fix for this.

Code [sig013w]

A vulnerability exists in the expreserve utility for SunOS 4.1.1 systems which can be used to gain unauthorized privileges. Expreserve is used by the 'ex' and 'vi' editors for preserving files when the editors terminate abnormally. Sun Patch ID 100251 provides a fix for this. (obsoleted by by Sun Patch ID 101080, [sig014w])

Code [sig014w]

CERT Advisory CA-93:09a

CIAC Advisory D-16

A vulnerability exists in the expreserve utility for SunOS 4.1.1, 4.1.2, 4.1.3, 5.0, 5.1, and 5.2 systems which can be used to gain unauthorized privileges. Expreserve is used by the 'ex' and 'vi' editors for preserving files when the editors terminate abnormally. Fixes for this for SunOS 4.x and 5.x are:

Sun Patch ID 101080 -- SunOS 4.x

Sun Patch ID 101119 -- SunOS 5.0

Sun Patch ID 101089 -- SunOS 5.1

Sun Patch ID 101090 -- SunOS 5.2

Code [sig015w]

CERT Advisory CA-91:01a

A vulnerability exists in the /bin/mail and /bin/rmail utility for SunOS 4.x systems which can be used to gain unauthorized privileges. These programs are responsible for performing local mail delivery. Sun Patch ID 100224 provides a fix for this.

Code [sig016w]

CERT Advisory CA-93:15

A vulnerability exists in /usr/lib/sendmail which allows a remote user to gain access to the system.

Sun Patch ID 100377-07 provides a fix for SunOS 4.x.

Sun Patch ID 100840-03 provides a fix for Solaris 2.1.

Sun Patch ID 101077-03 provides a fix for Solaris 2.2.

(you should obtain the latest revision of the patch).

Code [sig017w]

CERT Advisory CA-93:15

A vulnerability exists in the 'tar' utility which causes it to place information from the passwd file in the archive set. Archives created with this version of 'tar' should not be distributed.

Sun Patch ID 100975-02 provides a fix for Solaris 2.1.

Sun Patch ID 101301-01 provides a fix for Solaris 2.2.

(you should obtain the latest revision of the patch)

Code [sig018w]

The /usr/kvm/modload program can be used to gain super-user privileges. Sun Patch ID 101200 provides a fix for this. The documentation for the patch indicates that it is for SunOS 4.1.3, but examination of the SunOS 4.1.2 /usr/kvm/modload indicates it suffers from the same problem. I do not know whether the modload binary in 101200 will work with SunOS 4.1.2.

Code [sig019w]

This is an additional fix to /usr/5bin/su. See 'sig006w' for information on the initial fixes.

/usr/5bin/su sets the default path with '.' as the first search directory. This opens the system up to trojan programs. Sun Patch Id 100630-02 provides a fix for this, in addition to those discussed in 'sig006w'. Refer to the README provided with the patch for additional information concerning international sites.

Sun Patch ID 100630 /usr/5bin/su

Code [sig020w]

On SunOS 5.2, the FTP daemon does not correctly verify that the user's shell is valid. As a result restricted accounts can login via FTP.

Sun Patch ID 101037 provides a fix for this.

Code [sig021w]

The remote shell daemon on Linux 0.99.12 from TAMU (and other distributions) does not understand shadow passwords. If an entry in /etc/passwd (not /etc/shadow) has a null password field, a remote shell will succeed from any where to that account. The 'passwd' command does *not* sanity check this field when changing the password. As a result, the 'root' account has a null password field, allowing anyone to remote shell in as root. To fix this problem, place a '*' in the password field in /etc/passwd.