DrayTek VigorSwitch Multiple Models Buffer Overflow via webBackupAction
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 3.9.10, 2.10.6, 2.10.7, 3.10.6, 2.9.10
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
Multiple DrayTek VigorSwitch models contain a buffer overflow vulnerability in the webBackupAction function. The vulnerability is caused by repeated string concatenation of the pathN, valueN, key, and option fields into fixed-size stack buffers without total length checks. A remote attacker can trigger this vulnerability via crafted input, causing a denial of service or potentially executing arbitrary commands. Exploitation requires valid administrative credentials for the device's web management interface.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- DrayTek Corporation VigorSwitch G2540xs
fixed in 3.9.10
- DrayTek Corporation VigorSwitch P2540xs
fixed in 3.9.10
- DrayTek Corporation VigorSwitch FX2120
fixed in 3.9.10
- DrayTek Corporation VigorSwitch G2282x
fixed in 2.10.6
- DrayTek Corporation VigorSwitch P2282x
fixed in 2.10.6
- DrayTek Corporation VigorSwitch Q2300x
fixed in 2.10.7
- DrayTek Corporation VigorSwitch PQ2300xb
fixed in 2.10.7
- DrayTek Corporation VigorSwitch G2542x
fixed in 3.10.6
- DrayTek Corporation VigorSwitch P2542x
fixed in 3.10.6
- DrayTek Corporation VigorSwitch P2542xh
fixed in 3.10.6
- DrayTek Corporation VigorSwitch PX2060
fixed in 2.9.10
- DrayTek Corporation VigorSwitch G1280
fixed in 2.9.10
- DrayTek Corporation VigorSwitch P1280
fixed in 2.9.10
- DrayTek Corporation VigorSwitch P1281x
fixed in 2.9.10
- DrayTek Corporation VigorSwitch G1282
fixed in 2.9.10
- DrayTek Corporation VigorSwitch P1282
fixed in 2.9.10
- DrayTek Corporation VigorSwitch G2121
fixed in 2.9.10
- DrayTek Corporation VigorSwitch P2121
fixed in 2.9.10
- DrayTek Corporation VigorSwitch PQ2121x
fixed in 2.9.10
- DrayTek Corporation VigorSwitch Q2121x
fixed in 2.9.10
- DrayTek Corporation VigorSwitch G2280x
fixed in 2.9.10
- DrayTek Corporation VigorSwitch P2280x
fixed in 2.9.10
- DrayTek Corporation VigorSwitch Q2200x
fixed in 2.9.10
- DrayTek Corporation VigorSwitch PQ2200xb
fixed in 2.9.10
- DrayTek Corporation VigorSwitch G2100
fixed in 2.9.10
- DrayTek Corporation VigorSwitch P2100
fixed in 2.9.10
- DrayTek Corporation VigorSwitch G2540x
fixed in 2.9.10
- DrayTek Corporation VigorSwitch P2540x
fixed in 2.9.10