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CVE Descriptions
The default configuration of the DVI print filter (dvips) in Red Hat Linux 7.0 and earlier does not run dvips in secure mode when dvips is executed by lpd, which could allow remote attackers to gain privileges by printing a DVI file that contains malicious commands.
CVE Informations
Metrics
| Metrics | Score | Severity | CVSS Vector | Source |
|---|---|---|---|---|
| V2 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P | nvd@nist.gov |
EPSS
EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.
EPSS Score
The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.
EPSS Percentile
The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
Exploit information
Exploit Database EDB-ID : 21095
Publication date : 2001-08-26 22h00 +00:00
Author : zenith parsec
EDB Verified : Yes
source: https://www.securityfocus.com/bid/3241/info
'dvips' is a utility that converts DVI documents to PostScript. It is an optional component of the TeTeX text formatting package. When installed on a system where LPRnG and TeTeX are in use, 'dvips' will be invoked by 'lpd' when a DVI document is to be printed if a printfilter exists for it.
On some systems, 'dvips' is not invoked in a safe manner. As a result, it may be possible for remote attackers to execute commands through certain DVI directives on vulnerable systems through 'lpd'.
It should be noted that this vulnerability is only due to the configuration of the DVI printfilter on some systems. There is no specific vulnerability in lpd, dvips or any other executable component. It is simply an error in the default configuration present on some systems. It has been reported that Red Hat 7.0 is vulnerable with the default configuration installed with the RPM packages.
cat >exploit.tex <<EOF
\special{psfile="`command to be executed`"}
\end
EOF
tex exploit.tex
lpr exploit.dvi
Products Mentioned
Configuraton 0
Redhat>>Linux >> Version 6.2
- Redhat>>Linux >> Version 6.2 (Open CPE detail)
Redhat>>Linux >> Version 7.0
- Redhat>>Linux >> Version 7.0 (Open CPE detail)
Redhat>>Linux >> Version 7.1
- Redhat>>Linux >> Version 7.1 (Open CPE detail)
